Paul tries to slip back into his community unnoticed after falling flat on his face in the big city of Winnipeg.

A bad day compels Penny to re-evaluate her choices - including Leonard; Bernadette and Howard must care for Mrs. Wolowitz; Sheldon gives Raj advice on relationships.

Darlene falls in love with a house she's looking; when the realtor shares she has a better chance of getting the house if she's part of a couple, she convinces Ben to pretend to be her partner.

Sheldon gives spontaneity a try, which causes unexpected friction for Penny, Bernadette and Amy; Raj asks Howard for help with preparation for a date with Emily.

Professor Proton (Bob Newhart) helps Sheldon deal with grief; Leonard gets into a competition with Penny; Bernadette and Amy prepare a "Star Wars Day" gift for the guys.

Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.

Paul tries to slip back into his community unnoticed after falling flat on his face in the big city of Winnipeg.

When Nick's father shows up, Nick worries he's being used in one of his gambling schemes, but Jess is intent on fixing their relationship; Schmidt gets help from Robby as he tries to win Cece back.

Nick thinks that one of Jess' students is hiding an evil secret and decides to go to class under cover to investigate; Winston has an awkward encounter with Cece.

Nick and Schmidt's night out turns sour when they start competing over a woman; Winston falls for a girl who doesn't share his feelings; Jess' night alone doesn't go as planned.

The gang accompanies Cece to a dating convention; Winston gets his mojo back; Nick and Jess wind up in a compromising position in front of Sam.

Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.

Paul tries to slip back into his community unnoticed after falling flat on his face in the big city of Winnipeg.

Mark returns to public school and finds it hard to fit in; Darlene isn't happy when she finds out what Mark's doing to make a little extra cash for college; Becky finds herself in an interesting situation with one of her college professors.

Darlene falls in love with a house she's looking; when the realtor shares she has a better chance of getting the house if she's part of a couple, she convinces Ben to pretend to be her partner.

Oscar tries to fix a roof; Brent and Karen write a kid's book on bike safety.

Brent fears he is losing his hair; Wanda gets a new lamp and has to fight to keep it.

The sewer system backs up and causes chaos; Emma tries to trick Oscar into getting an updated family portrait.

Hank and Oscar team up to build a shelter for the apocalypse and Davis, Karen and Wanda argue over who would be the best leader; Emma traps Brent and Lacey in the cellar so they can hash things out.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Oscar tries to fix a roof; Brent and Karen write a kid's book on bike safety.

Brent fears he is losing his hair; Wanda gets a new lamp and has to fight to keep it.

The sewer system backs up and causes chaos; Emma tries to trick Oscar into getting an updated family portrait.

Hank and Oscar team up to build a shelter for the apocalypse and Davis, Karen and Wanda argue over who would be the best leader; Emma traps Brent and Lacey in the cellar so they can hash things out.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Oscar tries to fix a roof; Brent and Karen write a kid's book on bike safety.

Brent fears he is losing his hair; Wanda gets a new lamp and has to fight to keep it.

The sewer system backs up and causes chaos; Emma tries to trick Oscar into getting an updated family portrait.

Hank and Oscar team up to build a shelter for the apocalypse and Davis, Karen and Wanda argue over who would be the best leader; Emma traps Brent and Lacey in the cellar so they can hash things out.

The family is locked down at home due to a shooting incident in the neighborhood.

When Nick's father shows up, Nick worries he's being used in one of his gambling schemes, but Jess is intent on fixing their relationship; Schmidt gets help from Robby as he tries to win Cece back.

Nick thinks that one of Jess' students is hiding an evil secret and decides to go to class under cover to investigate; Winston has an awkward encounter with Cece.

Nick and Schmidt's night out turns sour when they start competing over a woman; Winston falls for a girl who doesn't share his feelings; Jess' night alone doesn't go as planned.

The gang accompanies Cece to a dating convention; Winston gets his mojo back; Nick and Jess wind up in a compromising position in front of Sam.

Faced with an uncertain future, Sheldon considers a major change; Emily and Raj decide to take things to the next level.

Leonard and Amy make an unexpected trip to Arizona to fetch Sheldon; Penny interviews for a job at Bernadette's company; Stuart's relationship with Mrs. Wolowitz disturbs Howard.

When Sheldon must teach a class, Howard decides to take it; Amy takes advantage of the tension between Penny and Bernadette.

The family is locked down at home due to a shooting incident in the neighborhood.

When Becky inadvertently outs her relationship with professor Davis, it's his erratic behavior that sends Becky down a path to reevaluate their relationship; Dan and Darlene check in on Chuck, only to learn heartbreaking news about his family.

Ross becomes upset when someone at work takes his sandwich from the refrigerator and eats it; Joey finds himself in a mess when he tries to cover for Chandler and Monica's dating.

Phoebe helps the Salvation Army and learns some truths about New Yorkers; Rachel gets a date with her neighbor who has a close relationship with his sexy sister; Joey tries to write a play in which he can be the star.

Ross vows to try something new; Joey resolves to learn guitar from Phoebe; Rachel gives up gossiping.

Audrey and Mary's feud rears its head when Georgie needs their help with the tire store; Jim is forced to confront his age after a visit to the DMV.

Faced with an uncertain future, Sheldon considers a major change; Emily and Raj decide to take things to the next level.

Leonard and Amy make an unexpected trip to Arizona to fetch Sheldon; Penny interviews for a job at Bernadette's company; Stuart's relationship with Mrs. Wolowitz disturbs Howard.

Leonard is horrified when his mother (Christine Baranski) visits.

During a game, Sheldon revisits Christmas memories; Amy, Penny and Bernadette look for a date for Koothrappali.

When Sheldon must teach a class, Howard decides to take it; Amy takes advantage of the tension between Penny and Bernadette.

When Becky inadvertently outs her relationship with professor Davis, it's his erratic behavior that sends Becky down a path to reevaluate their relationship; Dan and Darlene check in on Chuck, only to learn heartbreaking news about his family.

Faced with an uncertain future, Sheldon considers a major change; Emily and Raj decide to take things to the next level.

Leonard and Amy make an unexpected trip to Arizona to fetch Sheldon; Penny interviews for a job at Bernadette's company; Stuart's relationship with Mrs. Wolowitz disturbs Howard.

Leonard is horrified when his mother (Christine Baranski) visits.

During a game, Sheldon revisits Christmas memories; Amy, Penny and Bernadette look for a date for Koothrappali.

Ross becomes upset when someone at work takes his sandwich from the refrigerator and eats it; Joey finds himself in a mess when he tries to cover for Chandler and Monica's dating.

Phoebe helps the Salvation Army and learns some truths about New Yorkers; Rachel gets a date with her neighbor who has a close relationship with his sexy sister; Joey tries to write a play in which he can be the star.

Ross vows to try something new; Joey resolves to learn guitar from Phoebe; Rachel gives up gossiping.

Audrey and Mary's feud rears its head when Georgie needs their help with the tire store; Jim is forced to confront his age after a visit to the DMV.

Leonard is horrified when his mother (Christine Baranski) visits.

During a game, Sheldon revisits Christmas memories; Amy, Penny and Bernadette look for a date for Koothrappali.

The family is locked down at home due to a shooting incident in the neighborhood.

When Becky inadvertently outs her relationship with professor Davis, it's his erratic behavior that sends Becky down a path to reevaluate their relationship; Dan and Darlene check in on Chuck, only to learn heartbreaking news about his family.

Lacey starts a coffee shop newsletter; Oscar's childhood dream.

Lacey's friend Connie comes to Dog River; Davis thinks Karen would make a bad undercover cop.

Hank and Brent restore a vintage car; Karen deals with a stray cat; Emma and Lacey paint over some graffiti.

Hank accidentally punches Brent and it is agreed that Brent can punch him back.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Lacey starts a coffee shop newsletter; Oscar's childhood dream.

Lacey's friend Connie comes to Dog River; Davis thinks Karen would make a bad undercover cop.

Hank and Brent restore a vintage car; Karen deals with a stray cat; Emma and Lacey paint over some graffiti.

Hank accidentally punches Brent and it is agreed that Brent can punch him back.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Lacey starts a coffee shop newsletter; Oscar's childhood dream.

Lacey's friend Connie comes to Dog River; Davis thinks Karen would make a bad undercover cop.

Hank and Brent restore a vintage car; Karen deals with a stray cat; Emma and Lacey paint over some graffiti.

Hank accidentally punches Brent and it is agreed that Brent can punch him back.

Darlene searches for a home that she and Becky can afford; after an attempt to boost business at the diner goes awry, Jackie finds herself apologizing to Ben and rethinking her future running the place.

Ross becomes upset when someone at work takes his sandwich from the refrigerator and eats it; Joey finds himself in a mess when he tries to cover for Chandler and Monica's dating.

Phoebe helps the Salvation Army and learns some truths about New Yorkers; Rachel gets a date with her neighbor who has a close relationship with his sexy sister; Joey tries to write a play in which he can be the star.

Ross vows to try something new; Joey resolves to learn guitar from Phoebe; Rachel gives up gossiping.

Audrey and Mary's feud rears its head when Georgie needs their help with the tire store; Jim is forced to confront his age after a visit to the DMV.

Wolowitz feels nervous when he is asked to throw the first pitch at a Los Angeles Angels game; Penny and Leonard want to prove Sheldon wrong after he says he and Amy are the better couple.

Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny; the guys think about becoming part owners in Stuart's store.

During their weekend in Las Vegas, Bernadette and Amy accuse Penny of being a buzz kill; the guys try to invent the next big thing.

Darlene searches for a home that she and Becky can afford; after an attempt to boost business at the diner goes awry, Jackie finds herself apologizing to Ben and rethinking her future running the place.

Dan enlists the help of a few good friends for the funeral home remodel; Louise points out that Dan's generosity with his time seems to benefit everyone but her; Robin and Darlene take a big career risk that may not pay off the way they expect it to.

Monica is put off by the laugh Chandler uses to impress his boss (Sam McMurray); Ross shocks everyone by dating Janice (Maggie Wheeler).

Phoebe meets her estranged father (Bob Balaban) at her grandmother's funeral; Joey's fondness for an expensive bag loses him an audition; Chandler tells perfectionist Monica that she is useless at massage.

Ross must prove to his boss that he is sane in order to return to work; Phoebe finds out about Monica and Chandler's relationship; Ross hunts for a new apartment.

Chandler gets nervous when everyone learns about Monica; Joey's new girlfriend gets physical; Ross moves into a new apartment but fails to impress his new neighbors.

Wolowitz feels nervous when he is asked to throw the first pitch at a Los Angeles Angels game; Penny and Leonard want to prove Sheldon wrong after he says he and Amy are the better couple.

Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny; the guys think about becoming part owners in Stuart's store.

Raj and Sheldon try to simulate a dark-matter research expedition; after a fight about money, Penny and Leonard turn to Bernadette and Wolowitz for advice.

The guys try to help when Penny is faced with an awkward dilemma at work; Bernadette and Amy discuss sexuality and female scientists.

During their weekend in Las Vegas, Bernadette and Amy accuse Penny of being a buzz kill; the guys try to invent the next big thing.

Dan enlists the help of a few good friends for the funeral home remodel; Louise points out that Dan's generosity with his time seems to benefit everyone but her; Robin and Darlene take a big career risk that may not pay off the way they expect it to.

Wolowitz feels nervous when he is asked to throw the first pitch at a Los Angeles Angels game; Penny and Leonard want to prove Sheldon wrong after he says he and Amy are the better couple.

Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny; the guys think about becoming part owners in Stuart's store.

Raj and Sheldon try to simulate a dark-matter research expedition; after a fight about money, Penny and Leonard turn to Bernadette and Wolowitz for advice.

The guys try to help when Penny is faced with an awkward dilemma at work; Bernadette and Amy discuss sexuality and female scientists.

Monica is put off by the laugh Chandler uses to impress his boss (Sam McMurray); Ross shocks everyone by dating Janice (Maggie Wheeler).

Phoebe meets her estranged father (Bob Balaban) at her grandmother's funeral; Joey's fondness for an expensive bag loses him an audition; Chandler tells perfectionist Monica that she is useless at massage.

Ross must prove to his boss that he is sane in order to return to work; Phoebe finds out about Monica and Chandler's relationship; Ross hunts for a new apartment.

Chandler gets nervous when everyone learns about Monica; Joey's new girlfriend gets physical; Ross moves into a new apartment but fails to impress his new neighbors.

Raj and Sheldon try to simulate a dark-matter research expedition; after a fight about money, Penny and Leonard turn to Bernadette and Wolowitz for advice.

The guys try to help when Penny is faced with an awkward dilemma at work; Bernadette and Amy discuss sexuality and female scientists.

Darlene searches for a home that she and Becky can afford; after an attempt to boost business at the diner goes awry, Jackie finds herself apologizing to Ben and rethinking her future running the place.

Dan enlists the help of a few good friends for the funeral home remodel; Louise points out that Dan's generosity with his time seems to benefit everyone but her; Robin and Darlene take a big career risk that may not pay off the way they expect it to.

It's Dog River's 100th birthday and Hank wants to pay tribute by building a scale model of the town using Lego blocks; like any artist, he demands perfection.

Davis shapes up; Brent and Lacey compete to get a secret from Karen.

Lacey tries to get a photo of a blue moon sunrise with Brent, but it turns awkward; Hank is suspicious about Oscar being nice to Emma; Davis and Wanda argue about a new book.

Lacey is frustrated with the new party planning methods; Wanda convinces Brent and Hank to take high school tests to see who is smarter.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

It's Dog River's 100th birthday and Hank wants to pay tribute by building a scale model of the town using Lego blocks; like any artist, he demands perfection.

Davis shapes up; Brent and Lacey compete to get a secret from Karen.

Lacey tries to get a photo of a blue moon sunrise with Brent, but it turns awkward; Hank is suspicious about Oscar being nice to Emma; Davis and Wanda argue about a new book.

Lacey is frustrated with the new party planning methods; Wanda convinces Brent and Hank to take high school tests to see who is smarter.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

It's Dog River's 100th birthday and Hank wants to pay tribute by building a scale model of the town using Lego blocks; like any artist, he demands perfection.

Davis shapes up; Brent and Lacey compete to get a secret from Karen.

Lacey tries to get a photo of a blue moon sunrise with Brent, but it turns awkward; Hank is suspicious about Oscar being nice to Emma; Davis and Wanda argue about a new book.

Lacey is frustrated with the new party planning methods; Wanda convinces Brent and Hank to take high school tests to see who is smarter.

Darlene struggles to cope with the stress of construction; Lou returns as Mark's combative contrabassoon teacher.

Monica is put off by the laugh Chandler uses to impress his boss (Sam McMurray); Ross shocks everyone by dating Janice (Maggie Wheeler).

Phoebe meets her estranged father (Bob Balaban) at her grandmother's funeral; Joey's fondness for an expensive bag loses him an audition; Chandler tells perfectionist Monica that she is useless at massage.

Ross must prove to his boss that he is sane in order to return to work; Phoebe finds out about Monica and Chandler's relationship; Ross hunts for a new apartment.

Chandler gets nervous when everyone learns about Monica; Joey's new girlfriend gets physical; Ross moves into a new apartment but fails to impress his new neighbors.

Sheldon feels pressured to participate in romantic traditions when the gang re-creates a high-school prom on the roof.

Leonard has minor surgery on his nose, causing Sheldon to overreact; Bernadette and Howard work on their marriage.

Sheldon says goodbye to Fun With Flags; Howard, Leonard and Raj look through their dead professor's research; Bernadette learns her co-workers' true feelings.

Darlene struggles to cope with the stress of construction; Lou returns as Mark's combative contrabassoon teacher.

Ben and Darlene are excited to share their good news with the family, but Neville, Jackie, Aldo and Harris share some very similar news of their own.

Georgie goes on a birthday date; Mary confronts Brenda about her relationship with George; Sheldon takes an interest in Missy's favorite TV show.

Sheldon wants to search for life on other planets; Mandy answers Georgie's marriage proposal; Missy is caught between two friends.

Mandy gets an exciting job opportunity; Sheldon worries that he's falling behind; Georgie takes his daughter to work.

Ron and Alex react very differently to a seemingly selfless patient; Joyce runs into an old flame; Matt helps Bruce find a new best friend.

Matt's plan to prove he's the better driving teacher hits a snag when he learns his license is expired; Riley's two worlds collide as she struggles to keep both her business and family afloat.

Leonard has minor surgery on his nose, causing Sheldon to overreact; Bernadette and Howard work on their marriage.

When the guys agree to do something the girls like, Sheldon and Leonard end up having a confrontation.

Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough; Wolowitz invents a game about Raj.

Sheldon says goodbye to Fun With Flags; Howard, Leonard and Raj look through their dead professor's research; Bernadette learns her co-workers' true feelings.

Ben and Darlene are excited to share their good news with the family, but Neville, Jackie, Aldo and Harris share some very similar news of their own.

Sheldon feels pressured to participate in romantic traditions when the gang re-creates a high-school prom on the roof.

Leonard has minor surgery on his nose, causing Sheldon to overreact; Bernadette and Howard work on their marriage.

Matt's plan to prove he's the better driving teacher hits a snag when he learns his license is expired; Riley's two worlds collide as she struggles to keep both her business and family afloat.

Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough; Wolowitz invents a game about Raj.

Georgie goes on a birthday date; Mary confronts Brenda about her relationship with George; Sheldon takes an interest in Missy's favorite TV show.

Sheldon wants to search for life on other planets; Mandy answers Georgie's marriage proposal; Missy is caught between two friends.

Mandy gets an exciting job opportunity; Sheldon worries that he's falling behind; Georgie takes his daughter to work.

Ron and Alex react very differently to a seemingly selfless patient; Joyce runs into an old flame; Matt helps Bruce find a new best friend.

When the guys agree to do something the girls like, Sheldon and Leonard end up having a confrontation.

Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough; Wolowitz invents a game about Raj.

Darlene struggles to cope with the stress of construction; Lou returns as Mark's combative contrabassoon teacher.

Ben and Darlene are excited to share their good news with the family, but Neville, Jackie, Aldo and Harris share some very similar news of their own.

Brent enters into a long-term relationship; Wanda's telescope.

A simple jar of jellybeans turns Dog River's park from a dilapidated local hazard into full-blown scandal.

Brent helps Lacey buy a new car; Karen and Davis try to break the idea of cops in donut shops.

Karen is upset when Emma cuts Brent's hair; Hank promises to stain Lacey's deck.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent enters into a long-term relationship; Wanda's telescope.

A simple jar of jellybeans turns Dog River's park from a dilapidated local hazard into full-blown scandal.

Brent helps Lacey buy a new car; Karen and Davis try to break the idea of cops in donut shops.

Karen is upset when Emma cuts Brent's hair; Hank promises to stain Lacey's deck.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent enters into a long-term relationship; Wanda's telescope.

A simple jar of jellybeans turns Dog River's park from a dilapidated local hazard into full-blown scandal.

Brent helps Lacey buy a new car; Karen and Davis try to break the idea of cops in donut shops.

Karen is upset when Emma cuts Brent's hair; Hank promises to stain Lacey's deck.

The Conners gear up for a megawedding; Jackie and Neville, Darlene and Ben, and Harris and Aldo are planning for a shared big day, but along the way, they discover that some of the couples may not be on the same page about their happily ever afters.

Georgie goes on a birthday date; Mary confronts Brenda about her relationship with George; Sheldon takes an interest in Missy's favorite TV show.

Sheldon wants to search for life on other planets; Mandy answers Georgie's marriage proposal; Missy is caught between two friends.

Mandy gets an exciting job opportunity; Sheldon worries that he's falling behind; Georgie takes his daughter to work.

Ron and Alex react very differently to a seemingly selfless patient; Joyce runs into an old flame; Matt helps Bruce find a new best friend.

Sheldon and Leonard must defend themselves from an online bully's criticism after they co-publish a paper; Bernadette, Penny and Amy confront embarrassing moments during a girls night.

While the gang waits for the reopening of Stuart's comic book store Wolowitz gets some shocking news; Penny has trouble taking her own advice; Leonard and Raj think they spot Nathan Fillion at a restaurant.

Penny and Sheldon design an experiment - as a joke - to make participants fall in love; Howard and Bernadette get into trouble at the airport.

The Conners gear up for a megawedding; Jackie and Neville, Darlene and Ben, and Harris and Aldo are planning for a shared big day, but along the way, they discover that some of the couples may not be on the same page about their happily ever afters.

In an effort to save money, Darlene and Ben join Jackie and Neville on a joint honeymoon, where the newlyweds' cost-saving measures contribute to a tension-filled getaway; Dan, Becky, Harris, Mark and Beverly Rose go to a water park.

Mandy surprises Georgie with a spa weekend; Sheldon prepares for his summer in Germany.

Sheldon and Mary head to Germany while the rest of the Cooper family braves a tornado that is heading straight for Medford.

News of the tornado reaches Sheldon and Mary in Germany; with the Cooper house in chaos, Missy steps up.

Sheldon realizes he is the weakest student in his class; Meemaw looks to expand her gambling business.

Sheldon and Leonard must defend themselves from an online bully's criticism after they co-publish a paper; Bernadette, Penny and Amy confront embarrassing moments during a girls night.

While the gang waits for the reopening of Stuart's comic book store Wolowitz gets some shocking news; Penny has trouble taking her own advice; Leonard and Raj think they spot Nathan Fillion at a restaurant.

Penny and Sheldon design an experiment - as a joke - to make participants fall in love; Howard and Bernadette get into trouble at the airport.

Amy finds out that Sheldon applied for a one-way mission to colonize Mars; a trip to the pet store leads to a fight; Leonard has a surprise for Penny; Raj is busted while snooping in Emily's apartment.

Ricky bails Trinity out of jail; Lahey goes on a drunk-a-thon.

Cyrus gets out of jail and goes after Ricky, Julian and Bubbles; Lahey saves Ricky's life.

Penny and Sheldon design an experiment - as a joke - to make participants fall in love; Howard and Bernadette get into trouble at the airport.

While the gang waits for the reopening of Stuart's comic book store Wolowitz gets some shocking news; Penny has trouble taking her own advice; Leonard and Raj think they spot Nathan Fillion at a restaurant.

Penny and Sheldon design an experiment - as a joke - to make participants fall in love; Howard and Bernadette get into trouble at the airport.

Amy finds out that Sheldon applied for a one-way mission to colonize Mars; a trip to the pet store leads to a fight; Leonard has a surprise for Penny; Raj is busted while snooping in Emily's apartment.

Ricky bails Trinity out of jail; Lahey goes on a drunk-a-thon.

Cyrus gets out of jail and goes after Ricky, Julian and Bubbles; Lahey saves Ricky's life.

News of the tornado reaches Sheldon and Mary in Germany; with the Cooper house in chaos, Missy steps up.

Sheldon realizes he is the weakest student in his class; Meemaw looks to expand her gambling business.

Penny and Sheldon design an experiment - as a joke - to make participants fall in love; Howard and Bernadette get into trouble at the airport.

Amy finds out that Sheldon applied for a one-way mission to colonize Mars; a trip to the pet store leads to a fight; Leonard has a surprise for Penny; Raj is busted while snooping in Emily's apartment.

The Conners gear up for a megawedding; Jackie and Neville, Darlene and Ben, and Harris and Aldo are planning for a shared big day, but along the way, they discover that some of the couples may not be on the same page about their happily ever afters.

In an effort to save money, Darlene and Ben join Jackie and Neville on a joint honeymoon, where the newlyweds' cost-saving measures contribute to a tension-filled getaway; Dan, Becky, Harris, Mark and Beverly Rose go to a water park.

Brent and Hank battle to take back their childhood tree house; Oscar's in denial.

Brent purchases a new digital camera; trivia showdown; Oscar is haunted by a ceramic gnome.

Oscar tries to fix a roof; Brent and Karen write a kid's book on bike safety.

Brent fears he is losing his hair; Wanda gets a new lamp and has to fight to keep it.

Lacey starts a coffee shop newsletter; Oscar's childhood dream.

Lacey's friend Connie comes to Dog River; Davis thinks Karen would make a bad undercover cop.

A magazine article only credits Sheldon in an article about a paper he co-wrote with Leonard; a blackout at Mrs. Wolowitz's results in a final dinner in her honor.

When Sheldon and Leonard are asked to speak at UC Berkeley, they take a detour in hope of meeting an idol; Raj and Amy try to settle a dispute between Howard and Bernadette with a game of pingpong.

Sheldon and Amy build a blanket fort - and come to a crossroads in their relationship; Wolowitz meets a half-brother he didn't know he had; Leonard and Penny have an argument during an appearance on Wil Wheaton's podcast.

The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.

Wolowitz questions his engineering skills after he and Sheldon can't get a toy drone to fly; a canceled flight puts Leonard's plans in jeopardy; Raj sets his parents against one another after he's cut off financially.

When Sheldon's and Leonard's mothers finally meet, personalities collide; Howard decides to do his share of the chores - with a little help from his friends.

While facing dramatic changes in his relationship with Amy, Sheldon pushes Penny and Leonard to choose a wedding date.

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags"; Bernadette feels bad about keeping a secret.

A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills; Penny is compelled to tell her family that she and Leonard eloped.

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to to find Amy a new man on a dating app.

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home.

A magazine article only credits Sheldon in an article about a paper he co-wrote with Leonard; a blackout at Mrs. Wolowitz's results in a final dinner in her honor.

When Sheldon and Leonard are asked to speak at UC Berkeley, they take a detour in hope of meeting an idol; Raj and Amy try to settle a dispute between Howard and Bernadette with a game of pingpong.

Sheldon and Amy build a blanket fort - and come to a crossroads in their relationship; Wolowitz meets a half-brother he didn't know he had; Leonard and Penny have an argument during an appearance on Wil Wheaton's podcast.

The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.

Wolowitz questions his engineering skills after he and Sheldon can't get a toy drone to fly; a canceled flight puts Leonard's plans in jeopardy; Raj sets his parents against one another after he's cut off financially.

When Sheldon's and Leonard's mothers finally meet, personalities collide; Howard decides to do his share of the chores - with a little help from his friends.

While facing dramatic changes in his relationship with Amy, Sheldon pushes Penny and Leonard to choose a wedding date.

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags"; Bernadette feels bad about keeping a secret.

A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills; Penny is compelled to tell her family that she and Leonard eloped.

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to to find Amy a new man on a dating app.

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home.

A magazine article only credits Sheldon in an article about a paper he co-wrote with Leonard; a blackout at Mrs. Wolowitz's results in a final dinner in her honor.

When Sheldon and Leonard are asked to speak at UC Berkeley, they take a detour in hope of meeting an idol; Raj and Amy try to settle a dispute between Howard and Bernadette with a game of pingpong.

Sheldon and Amy build a blanket fort - and come to a crossroads in their relationship; Wolowitz meets a half-brother he didn't know he had; Leonard and Penny have an argument during an appearance on Wil Wheaton's podcast.

The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.

Wolowitz questions his engineering skills after he and Sheldon can't get a toy drone to fly; a canceled flight puts Leonard's plans in jeopardy; Raj sets his parents against one another after he's cut off financially.

When Sheldon's and Leonard's mothers finally meet, personalities collide; Howard decides to do his share of the chores - with a little help from his friends.

While facing dramatic changes in his relationship with Amy, Sheldon pushes Penny and Leonard to choose a wedding date.

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags"; Bernadette feels bad about keeping a secret.

A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills; Penny is compelled to tell her family that she and Leonard eloped.

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to to find Amy a new man on a dating app.

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home.

It's Dog River's 100th birthday and Hank wants to pay tribute by building a scale model of the town using Lego blocks; like any artist, he demands perfection.

Davis shapes up; Brent and Lacey compete to get a secret from Karen.

Brent enters into a long-term relationship; Wanda's telescope.

A simple jar of jellybeans turns Dog River's park from a dilapidated local hazard into full-blown scandal.

Brent helps Lacey buy a new car; Karen and Davis try to break the idea of cops in donut shops.

Karen is upset when Emma cuts Brent's hair; Hank promises to stain Lacey's deck.

Phoebe finds a police officer's badge and goes on a spree of arrests until she meets up with the owner; Joey thinks he's in love with Monica; Ross buys a couch but won't pay to have it delivered.

Rachel worries about a kiss she gives to a job interviewer; Monica observes Phoebe's romantic bliss; Joey is arrested for stalking a sexy neighbor.

Rachel tries to impress her boss by smoking, which gives Chandler fond memories of his former addiction; Ross's son and Joey audition for the same part in a commercial.

Ross competes with Chandler for the attentions of a pizza deliverywoman (Kristin Dattilo-Hayward); Joey discovers that his guest-starring role on "Law & Order" was cut while watching the show with his proud grandmother.

Joey tries to save Ross' life when he thinks he hears gunshots while on patrol with Phoebe's police officer boyfriend.

Monica interrupts Joey and Ross' friendly game of catch; Gary (Michael Rapaport) asks Phoebe to move in with him.

Joey lands his first lead role and finds his movie crew in a bind; Rachel gets an eye infection; Phoebe can't quite remember why she hates Ross.

The gang surprises Joey by joining him in Las Vegas on a film shoot; a winning streak leads Chandler to press his luck with a proposition.

Chandler and Monica reconcile and hastily decide to get married; Ross and Rachel get drunk and roam the casino; Phoebe deals with a lurker on the slot machines.

Hung-over Rachel and Ross wonder if they got married while in Vegas; Monica and Chandler search the Strip for signs that they are altar-bound.

Ross seeks Phoebe's advice to help him sort out the legal status of his relationship with Rachel; Monica and Chandler plan to move in together.

Ross has Rachel on his mind when he gets between feuding Monica and Chandler; Joey advertises for a specific roommate.

A hernia-bearing Joey tries to pick up a quick acting gig; Rachel discovers that Ross never had their marriage annulled.

Rachel wants Ross to admit that he's mentally unbalanced so that a judge will grant them an annulment.

Phoebe finds a police officer's badge and goes on a spree of arrests until she meets up with the owner; Joey thinks he's in love with Monica; Ross buys a couch but won't pay to have it delivered.

Rachel worries about a kiss she gives to a job interviewer; Monica observes Phoebe's romantic bliss; Joey is arrested for stalking a sexy neighbor.

Rachel tries to impress her boss by smoking, which gives Chandler fond memories of his former addiction; Ross's son and Joey audition for the same part in a commercial.

Ross competes with Chandler for the attentions of a pizza deliverywoman (Kristin Dattilo-Hayward); Joey discovers that his guest-starring role on "Law & Order" was cut while watching the show with his proud grandmother.

Joey tries to save Ross' life when he thinks he hears gunshots while on patrol with Phoebe's police officer boyfriend.

Monica interrupts Joey and Ross' friendly game of catch; Gary (Michael Rapaport) asks Phoebe to move in with him.

Joey lands his first lead role and finds his movie crew in a bind; Rachel gets an eye infection; Phoebe can't quite remember why she hates Ross.

The gang surprises Joey by joining him in Las Vegas on a film shoot; a winning streak leads Chandler to press his luck with a proposition.

Chandler and Monica reconcile and hastily decide to get married; Ross and Rachel get drunk and roam the casino; Phoebe deals with a lurker on the slot machines.

Hung-over Rachel and Ross wonder if they got married while in Vegas; Monica and Chandler search the Strip for signs that they are altar-bound.

Ross seeks Phoebe's advice to help him sort out the legal status of his relationship with Rachel; Monica and Chandler plan to move in together.

Ross has Rachel on his mind when he gets between feuding Monica and Chandler; Joey advertises for a specific roommate.

A hernia-bearing Joey tries to pick up a quick acting gig; Rachel discovers that Ross never had their marriage annulled.

Rachel wants Ross to admit that he's mentally unbalanced so that a judge will grant them an annulment.

Phoebe finds a police officer's badge and goes on a spree of arrests until she meets up with the owner; Joey thinks he's in love with Monica; Ross buys a couch but won't pay to have it delivered.

Rachel worries about a kiss she gives to a job interviewer; Monica observes Phoebe's romantic bliss; Joey is arrested for stalking a sexy neighbor.

Rachel tries to impress her boss by smoking, which gives Chandler fond memories of his former addiction; Ross's son and Joey audition for the same part in a commercial.

Ross competes with Chandler for the attentions of a pizza deliverywoman (Kristin Dattilo-Hayward); Joey discovers that his guest-starring role on "Law & Order" was cut while watching the show with his proud grandmother.

Joey tries to save Ross' life when he thinks he hears gunshots while on patrol with Phoebe's police officer boyfriend.

Monica interrupts Joey and Ross' friendly game of catch; Gary (Michael Rapaport) asks Phoebe to move in with him.

Joey lands his first lead role and finds his movie crew in a bind; Rachel gets an eye infection; Phoebe can't quite remember why she hates Ross.

The gang surprises Joey by joining him in Las Vegas on a film shoot; a winning streak leads Chandler to press his luck with a proposition.

Chandler and Monica reconcile and hastily decide to get married; Ross and Rachel get drunk and roam the casino; Phoebe deals with a lurker on the slot machines.

Hung-over Rachel and Ross wonder if they got married while in Vegas; Monica and Chandler search the Strip for signs that they are altar-bound.

Ross seeks Phoebe's advice to help him sort out the legal status of his relationship with Rachel; Monica and Chandler plan to move in together.

Ross has Rachel on his mind when he gets between feuding Monica and Chandler; Joey advertises for a specific roommate.

A hernia-bearing Joey tries to pick up a quick acting gig; Rachel discovers that Ross never had their marriage annulled.

Rachel wants Ross to admit that he's mentally unbalanced so that a judge will grant them an annulment.

When a morning radio DJ impersonates Brent on his show, he goes out of his way to prove it's not him; Lacey is upset with her delivery service.

Oscar and Emma argue over the room temperature; Karen makes Lacey regret disobeying a local yield sign.

The women can't get rid of Hank from a girls-only event; Brent stocks a new drink and Wanda is attracted to its cardboard promotion.

At the Summer Solstice Deck Party, the locals compete for a seat in the sun, Brent sells popsicles and Karen and Davis must share a gun.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

When a morning radio DJ impersonates Brent on his show, he goes out of his way to prove it's not him; Lacey is upset with her delivery service.

Oscar and Emma argue over the room temperature; Karen makes Lacey regret disobeying a local yield sign.

The women can't get rid of Hank from a girls-only event; Brent stocks a new drink and Wanda is attracted to its cardboard promotion.

At the Summer Solstice Deck Party, the locals compete for a seat in the sun, Brent sells popsicles and Karen and Davis must share a gun.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

When a morning radio DJ impersonates Brent on his show, he goes out of his way to prove it's not him; Lacey is upset with her delivery service.

Oscar and Emma argue over the room temperature; Karen makes Lacey regret disobeying a local yield sign.

The women can't get rid of Hank from a girls-only event; Brent stocks a new drink and Wanda is attracted to its cardboard promotion.

At the Summer Solstice Deck Party, the locals compete for a seat in the sun, Brent sells popsicles and Karen and Davis must share a gun.

When Jackie moves in with Neville, he shows up to their home with an excess of animals from his vet office; Darlene and Ben have an argument as Ben points out Darlene is turning into her father.

There's no sound, but there sure are plenty of laughs. This crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters! People are caught in a twisted yet funny web of comedic deception. This updated "Candid Camera" is a tad more risque and a little kookier with its practical jokes. The little snippets last only a few minutes, and some look more painful than others.

There's no sound, but there sure are plenty of laughs. This crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters! People are caught in a twisted yet funny web of comedic deception. This updated "Candid Camera" is a tad more risque and a little kookier with its practical jokes. The little snippets last only a few minutes, and some look more painful than others.

There's no sound, but there sure are plenty of laughs. This crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters! People are caught in a twisted yet funny web of comedic deception. This updated "Candid Camera" is a tad more risque and a little kookier with its practical jokes. The little snippets last only a few minutes, and some look more painful than others.

There's no sound, but there sure are plenty of laughs. This crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters! People are caught in a twisted yet funny web of comedic deception. This updated "Candid Camera" is a tad more risque and a little kookier with its practical jokes. The little snippets last only a few minutes, and some look more painful than others.

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

Amy and Sheldon spend Thanksgiving at the aquarium - as friends; Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette; Penny realizes that Leonard knows her better than she thought.

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

When Jackie moves in with Neville, he shows up to their home with an excess of animals from his vet office; Darlene and Ben have an argument as Ben points out Darlene is turning into her father.

Mark is anxious to get his driver's license when a job opportunity presents itself across town; Darlene attempts to teach Mark to drive, but her frantic energy sends him running to Ben for help; Harris meets a new guy online.

A battle ensues after Schmidt finds a new and highly coveted parking spot; Winston has a difficult time finding a condom when he gets an impromptu invite from Daisy.

A professional football player (Steve Howey) takes an interest in Jess; Nick and Schmidt argue over the party they are throwing to celebrate 10 years of living together; Cece receives an offer.

While under the influence of pain medication, Jess confesses her feelings to Nick; Schmidt becomes fixated on buying a fish; Nick tries to impress the owner of the bar (Odette Annable).

Jess, Schmidt and Winston go to Chicago with Nick to help him deal with a death in his family.

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

Amy and Sheldon spend Thanksgiving at the aquarium - as friends; Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette; Penny realizes that Leonard knows her better than she thought.

After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket.

Paul tries to slip back into his community unnoticed after falling flat on his face in the big city of Winnipeg.

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

Mark is anxious to get his driver's license when a job opportunity presents itself across town; Darlene attempts to teach Mark to drive, but her frantic energy sends him running to Ben for help; Harris meets a new guy online.

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

Amy and Sheldon spend Thanksgiving at the aquarium - as friends; Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette; Penny realizes that Leonard knows her better than she thought.

After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket.

Paul tries to slip back into his community unnoticed after falling flat on his face in the big city of Winnipeg.

A battle ensues after Schmidt finds a new and highly coveted parking spot; Winston has a difficult time finding a condom when he gets an impromptu invite from Daisy.

A professional football player (Steve Howey) takes an interest in Jess; Nick and Schmidt argue over the party they are throwing to celebrate 10 years of living together; Cece receives an offer.

While under the influence of pain medication, Jess confesses her feelings to Nick; Schmidt becomes fixated on buying a fish; Nick tries to impress the owner of the bar (Odette Annable).

Jess, Schmidt and Winston go to Chicago with Nick to help him deal with a death in his family.

After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket.

Paul tries to slip back into his community unnoticed after falling flat on his face in the big city of Winnipeg.

When Jackie moves in with Neville, he shows up to their home with an excess of animals from his vet office; Darlene and Ben have an argument as Ben points out Darlene is turning into her father.

Mark is anxious to get his driver's license when a job opportunity presents itself across town; Darlene attempts to teach Mark to drive, but her frantic energy sends him running to Ben for help; Harris meets a new guy online.

Brent and Lacey mentor high school students; Emma decides to be nicer to Oscar.

Brent helps Hank tear down a barn; Emma receives multiple manicures; David hires Wanda to snap pictures of him working.

Lacey and Brent help Hank build a zip-line downtown; Davis and Karen crack down on the free corner; Oscar and Emma win a free robot vacuum.

Wanda helps Brent investigate his nightmares about being attacked by Michael J. Fox.

Taxi passengers win money by answering trivia questions.

Taxi passengers win money by answering trivia questions.

Brent and Lacey mentor high school students; Emma decides to be nicer to Oscar.

Brent helps Hank tear down a barn; Emma receives multiple manicures; David hires Wanda to snap pictures of him working.

Lacey and Brent help Hank build a zip-line downtown; Davis and Karen crack down on the free corner; Oscar and Emma win a free robot vacuum.

Wanda helps Brent investigate his nightmares about being attacked by Michael J. Fox.

Taxi passengers win money by answering trivia questions.

Taxi passengers win money by answering trivia questions.

Brent and Lacey mentor high school students; Emma decides to be nicer to Oscar.

Brent helps Hank tear down a barn; Emma receives multiple manicures; David hires Wanda to snap pictures of him working.

Lacey and Brent help Hank build a zip-line downtown; Davis and Karen crack down on the free corner; Oscar and Emma win a free robot vacuum.

Wanda helps Brent investigate his nightmares about being attacked by Michael J. Fox.

When a relative passes away unexpectedly, the family must debate about who should gain custody of a jaded nephew, who is just shy of his 18th birthday.

A battle ensues after Schmidt finds a new and highly coveted parking spot; Winston has a difficult time finding a condom when he gets an impromptu invite from Daisy.

A professional football player (Steve Howey) takes an interest in Jess; Nick and Schmidt argue over the party they are throwing to celebrate 10 years of living together; Cece receives an offer.

While under the influence of pain medication, Jess confesses her feelings to Nick; Schmidt becomes fixated on buying a fish; Nick tries to impress the owner of the bar (Odette Annable).

Jess, Schmidt and Winston go to Chicago with Nick to help him deal with a death in his family.

Leonard agrees to meet with a psychiatrist (Jane Kaczmarek) on Penny's behalf; Sheldon and Koothrappali work together on an astronomical discovery; Wolowitz and Bernadette struggle with their feelings when Stuart moves out.

After dealing with Sheldon while he was sick, Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.

Sheldon's excitement about his Meemaw's visit fades when she butts heads with Amy; Raj questions his relationship with Emily after meeting someone new.

When a relative passes away unexpectedly, the family must debate about who should gain custody of a jaded nephew, who is just shy of his 18th birthday.

Problems arise on Beverly Rose's first day of kindergarten; Becky and Darlene have a disagreement; Harris advises an unusual solution for Dan's back pain.

While Monica helps Rachel move out, the two women have a war of words; Chandler says a "financial" adios to Joey.

Rachel regrets asking Phoebe to jog with her when her uncoordinated movements attract unwanted attention.

After bleaching his teeth, Ross discovers they glow in the dark; Joey's new roommate wants to redecorate.

Georgie and Mandy get upset when Audrey disciplines CeeCee without their permission.

Leonard agrees to meet with a psychiatrist (Jane Kaczmarek) on Penny's behalf; Sheldon and Koothrappali work together on an astronomical discovery; Wolowitz and Bernadette struggle with their feelings when Stuart moves out.

After dealing with Sheldon while he was sick, Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.

Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Penny and Leonard wrestle with getting older; Howard and Bernadette make a discovery in their hot tub; Raj is torn between Emily and another woman.

The gang celebrates news of Bernadette's pregnancy by singing karaoke; Wolowitz's reaction to the pregnancy announcement worries Bernadette; Wolowitz believes he needs to make more money to support his growing family.

Sheldon's excitement about his Meemaw's visit fades when she butts heads with Amy; Raj questions his relationship with Emily after meeting someone new.

Problems arise on Beverly Rose's first day of kindergarten; Becky and Darlene have a disagreement; Harris advises an unusual solution for Dan's back pain.

Leonard agrees to meet with a psychiatrist (Jane Kaczmarek) on Penny's behalf; Sheldon and Koothrappali work together on an astronomical discovery; Wolowitz and Bernadette struggle with their feelings when Stuart moves out.

After dealing with Sheldon while he was sick, Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.

Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Penny and Leonard wrestle with getting older; Howard and Bernadette make a discovery in their hot tub; Raj is torn between Emily and another woman.

The gang celebrates news of Bernadette's pregnancy by singing karaoke; Wolowitz's reaction to the pregnancy announcement worries Bernadette; Wolowitz believes he needs to make more money to support his growing family.

While Monica helps Rachel move out, the two women have a war of words; Chandler says a "financial" adios to Joey.

Rachel regrets asking Phoebe to jog with her when her uncoordinated movements attract unwanted attention.

After bleaching his teeth, Ross discovers they glow in the dark; Joey's new roommate wants to redecorate.

Georgie and Mandy get upset when Audrey disciplines CeeCee without their permission.

Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Penny and Leonard wrestle with getting older; Howard and Bernadette make a discovery in their hot tub; Raj is torn between Emily and another woman.

The gang celebrates news of Bernadette's pregnancy by singing karaoke; Wolowitz's reaction to the pregnancy announcement worries Bernadette; Wolowitz believes he needs to make more money to support his growing family.

When a relative passes away unexpectedly, the family must debate about who should gain custody of a jaded nephew, who is just shy of his 18th birthday.

Problems arise on Beverly Rose's first day of kindergarten; Becky and Darlene have a disagreement; Harris advises an unusual solution for Dan's back pain.

Davis is locked in a jail cell to raise money for charity; Wanda tries to install a toilet.

Karen prepares an eyewitness testimony; Hank tries becoming a rodeo clown.

Brent uses a drone to harass Oscar; Wanda and Emma attempt to measure the intelligence of turkeys.

Karen and Davis discover a mannequin dumped in the woods and try to solve the crime; at Corner Gas, Brent surprises Wanda with a scanner; in The Ruby, Lacey, Oscar, Hank, and Emma get drawn into an unusual bet about hand sanitizer.

Taxi passengers win money by answering trivia questions.

Taxi passengers win money by answering trivia questions.

Davis is locked in a jail cell to raise money for charity; Wanda tries to install a toilet.

Karen prepares an eyewitness testimony; Hank tries becoming a rodeo clown.

Brent uses a drone to harass Oscar; Wanda and Emma attempt to measure the intelligence of turkeys.

Karen and Davis discover a mannequin dumped in the woods and try to solve the crime; at Corner Gas, Brent surprises Wanda with a scanner; in The Ruby, Lacey, Oscar, Hank, and Emma get drawn into an unusual bet about hand sanitizer.

Taxi passengers win money by answering trivia questions.

Taxi passengers win money by answering trivia questions.

Davis is locked in a jail cell to raise money for charity; Wanda tries to install a toilet.

Karen prepares an eyewitness testimony; Hank tries becoming a rodeo clown.

Brent uses a drone to harass Oscar; Wanda and Emma attempt to measure the intelligence of turkeys.

Karen and Davis discover a mannequin dumped in the woods and try to solve the crime; at Corner Gas, Brent surprises Wanda with a scanner; in The Ruby, Lacey, Oscar, Hank, and Emma get drawn into an unusual bet about hand sanitizer.

Dan encourages the family to decorate the house for Halloween; Harris takes a stand on an issue that ruffles a few feathers in Darlene's new neighborhood.

While Monica helps Rachel move out, the two women have a war of words; Chandler says a "financial" adios to Joey.

Rachel regrets asking Phoebe to jog with her when her uncoordinated movements attract unwanted attention.

After bleaching his teeth, Ross discovers they glow in the dark; Joey's new roommate wants to redecorate.

Georgie and Mandy get upset when Audrey disciplines CeeCee without their permission.

For the first time in nine years, the gang celebrates Sheldon's birthday - surprising him with a special guest.

Leonard, Sheldon and Wolowitz file for a patent on their new invention; Penny, Amy and Bernadette give dating advice to Koothrappali after his breakup with Emily.

Sheldon makes a surprise revelation when Amy buys him a new laptop; Leonard and Wolowitz get sold out by Koothrappali after lying to their wives to attend a movie screening.

Dan encourages the family to decorate the house for Halloween; Harris takes a stand on an issue that ruffles a few feathers in Darlene's new neighborhood.

Darlene receives a promotion at her company, but she quickly learns the fancy title is not all it's cracked up to be; when Louise loses her job at Casita Bonita, an opportunity arises to work with Jackie at the Lunch Box.

Janine invites Joey, Monica and Ross to a TV taping; Phoebe and Rachel want an early glimpse at their Christmas gifts.

Janine's attitude causes strife between Joey and his friends; Rachel gets an apothecary table from a flea market.

Ross and Chandler argue over authorship of a joke; a question from Monica puts Phoebe on the spot; Joey reluctantly takes a job at Central Perk.

Rachel is worried about her sister's flirtation with Ross; sickly Monica is well enough to seduce Chandler; Joey uses free food to lure women to date him.

For the first time in nine years, the gang celebrates Sheldon's birthday - surprising him with a special guest.

Leonard, Sheldon and Wolowitz file for a patent on their new invention; Penny, Amy and Bernadette give dating advice to Koothrappali after his breakup with Emily.

Sheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts.

During a group get-together, a minor argument between Sheldon and Leonard turns into a heated debate, leaving the rest of the gang to choose sides.

Sheldon makes a surprise revelation when Amy buys him a new laptop; Leonard and Wolowitz get sold out by Koothrappali after lying to their wives to attend a movie screening.

Darlene receives a promotion at her company, but she quickly learns the fancy title is not all it's cracked up to be; when Louise loses her job at Casita Bonita, an opportunity arises to work with Jackie at the Lunch Box.

For the first time in nine years, the gang celebrates Sheldon's birthday - surprising him with a special guest.

Leonard, Sheldon and Wolowitz file for a patent on their new invention; Penny, Amy and Bernadette give dating advice to Koothrappali after his breakup with Emily.

Sheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts.

During a group get-together, a minor argument between Sheldon and Leonard turns into a heated debate, leaving the rest of the gang to choose sides.

Janine invites Joey, Monica and Ross to a TV taping; Phoebe and Rachel want an early glimpse at their Christmas gifts.

Janine's attitude causes strife between Joey and his friends; Rachel gets an apothecary table from a flea market.

Ross and Chandler argue over authorship of a joke; a question from Monica puts Phoebe on the spot; Joey reluctantly takes a job at Central Perk.

Rachel is worried about her sister's flirtation with Ross; sickly Monica is well enough to seduce Chandler; Joey uses free food to lure women to date him.

Sheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts.

During a group get-together, a minor argument between Sheldon and Leonard turns into a heated debate, leaving the rest of the gang to choose sides.

Dan encourages the family to decorate the house for Halloween; Harris takes a stand on an issue that ruffles a few feathers in Darlene's new neighborhood.

Darlene receives a promotion at her company, but she quickly learns the fancy title is not all it's cracked up to be; when Louise loses her job at Casita Bonita, an opportunity arises to work with Jackie at the Lunch Box.

Brent talks Hank into starting a blog; Lacey's friend gets her own cooking show; Wanda helps Davis with his taxes.

Brent realizes that Corner Gas may not actually be within the town of Dog River.

Emma sees high art in Hank's hedge-trimming and sells his services around town; prompted by Oscar, Brent tries to collect on the IOUs piling up at Corner Gas, resorting to unorthodox means; Davis and Karen set up the cop shop in The Ruby.

When Wullerton's weekly paper goes under, the gang worries the Dog River Howler will too; Wanda and Emma set out to recruit new advertisers, while Brent helps Oscar start an online version that raises eyebrows; Karen befriends a crow.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent talks Hank into starting a blog; Lacey's friend gets her own cooking show; Wanda helps Davis with his taxes.

Brent realizes that Corner Gas may not actually be within the town of Dog River.

Emma sees high art in Hank's hedge-trimming and sells his services around town; prompted by Oscar, Brent tries to collect on the IOUs piling up at Corner Gas, resorting to unorthodox means; Davis and Karen set up the cop shop in The Ruby.

When Wullerton's weekly paper goes under, the gang worries the Dog River Howler will too; Wanda and Emma set out to recruit new advertisers, while Brent helps Oscar start an online version that raises eyebrows; Karen befriends a crow.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent talks Hank into starting a blog; Lacey's friend gets her own cooking show; Wanda helps Davis with his taxes.

Brent realizes that Corner Gas may not actually be within the town of Dog River.

Emma sees high art in Hank's hedge-trimming and sells his services around town; prompted by Oscar, Brent tries to collect on the IOUs piling up at Corner Gas, resorting to unorthodox means; Davis and Karen set up the cop shop in The Ruby.

When Wullerton's weekly paper goes under, the gang worries the Dog River Howler will too; Wanda and Emma set out to recruit new advertisers, while Brent helps Oscar start an online version that raises eyebrows; Karen befriends a crow.

Jackie must come to terms with her mother becoming ill; Darlene's job hunt proves to be more difficult than anticipated.

Janine invites Joey, Monica and Ross to a TV taping; Phoebe and Rachel want an early glimpse at their Christmas gifts.

Janine's attitude causes strife between Joey and his friends; Rachel gets an apothecary table from a flea market.

Ross and Chandler argue over authorship of a joke; a question from Monica puts Phoebe on the spot; Joey reluctantly takes a job at Central Perk.

Rachel is worried about her sister's flirtation with Ross; sickly Monica is well enough to seduce Chandler; Joey uses free food to lure women to date him.

A bad day compels Penny to re-evaluate her choices - including Leonard; Bernadette and Howard must care for Mrs. Wolowitz; Sheldon gives Raj advice on relationships.

Faced with an uncertain future, Sheldon considers a major change; Emily and Raj decide to take things to the next level.

Leonard and Amy make an unexpected trip to Arizona to fetch Sheldon; Penny interviews for a job at Bernadette's company; Stuart's relationship with Mrs. Wolowitz disturbs Howard.

Jackie must come to terms with her mother becoming ill; Darlene's job hunt proves to be more difficult than anticipated.

Darlene, Ben, Becky and Beverly Rose move into the new house, where Darlene implements a new set of rules.