When a key witness in a murder trial is found dead in her hotel, detectives get involved in a spiraling case that unravels into an intricate conspiracy.

The team investigates a drug deal gone bad after the body of a college student is found; Detective Hailey Upton temporarily joins the team and finds her investigative methods clash with the Bureau's more buttoned-up environment.

The team welcomes a new member, Special Agent Tiffany Wallace, as they search for killers who orchestrated a mass shooting at a media company; OA's personal connection with the case threatens to cloud his judgement.

The team races to stop an active serial killer after three women are found weighted down at the bottom of a lake; Jubal looks into an old closed case after there are multiple similarities to the recent victims.

When the leader of a drug cartel and one of the world's most wanted men is apprehended by the team, the entire FBI headquarters is put at risk when his henchmen unveil a plot to free him; Isobel must make a difficult decision.

A shooting at a quinceañera leaves two dead, but the team believes they may not have been the intended targets; Maggie is conflicted as the team decides the best plan of action for using a witness to take down their suspect.

The team searches for a young girl who was kidnapped from a cabin during a family vacation; Maggie questions her relationship with Nestor when she learns he hasn't been completely honest with her.

The team must infiltrate a drug trafficking gang after the robbery of a chemical plant leaves two customs agents dead; Nestor offers his help on the case, giving Maggie new insight into his character.

On Valentine's Day, Team Scorpion must help a doctor and pilot who are trapped inside a helicopter; Toby and Happy wait for news on their fertility results; Sylvester realizes that he may have feelings for Florence.

The mental faculties of the geniuses of Team Scorpion are impaired while trying to prevent the creation of a black hole; Paige must simplify the science for them; Florence and Sylvester grow closer when she helps him with a special project.

The team is taken hostage when it inadvertently crashes a bank robbery in progress; Sylvester's feelings for Florence grow.

Team Scorpion heads to the bayou to track down a cagey alligator to stop a deadly virus; Paige teaches Walter the concept of the "white lie"; Walter hits Cabe with a tranquilizer gun, and Toby must save his life.

Team Scorpion must use their high IQs to win a softball game; Walter's secret night out with Florence puts Toby and Happy on edge.

Paige's maternal side goes into high gear when an unconscious boy gets stuck in the wheel well of an airborne airplane; Walter's white lie to Paige starts to take a toll on him; Paige realizes something is amiss.

The BAU team heads to Portland, Ore., to investigate a chilling abduction that may be linked to a local couple who were killed in their home a week earlier.

The BAU team flies to Iowa to investigate the disappearance of three 10-year-old children who appear to have been abducted from their homes, with surveillance video from a park as their only lead to finding the children's whereabouts.

Rossi questions his actions in the aftermath of a struggle with a serial killer who appears to have outsmarted the BAU.

The BAU investigates a string of murders taking place in supposedly haunted houses in Lewiston, Maine.

Rossi prepares to marry Krystall; the team investigates a series of fatal shootings following car accidents.

The BAU team investigates an unsub with striking similarities to Rossi's latest obsession, "The Chameleon."

The team searches for Everett Lynch and his daughter; Spencer has a meaningful visit with his mother.

The BAU team investigates a series of seemingly random fatal explosions throughout Kentucky and Tennessee.

A Navy lieutenant from a well-connected and affluent family has a fatal fall down a flight of stairs at a charity gala; the team investigates whether his death was an accident or foul play.

When Elvis Bertrand's "daughter" is linked to a murder case, he asks Pride to prove her innocence.

Tammy is convinced that a con man committed the hit-and-run murder of a Navy doctor, even though the evidence shows otherwise; unbeknownst to Hannah, her husband approaches Pride with new intel on an underground spy network.

The NCIS team investigates a deadly bombing at a military museum event with over 1,000 people in attendance.

The team hunts a killer who is fatally shooting seemingly unrelated targets; new agent Tiffany Wallace experiences tension between her work as an FBI agent and the responsibility she feels to her community as a Black woman.

After a bomb leaves three people dead, the team presses a reluctant informant to gather information from his close friends who are under suspicion; OA and his girlfriend clash over where the informant's rights lie.

When a reporter is kidnapped and held without a ransom demand, the team must dig into her past relationships in order to pin down her assailant's motive; Isobel's relationship comes under fire when the case makes a connection to her boyfriend.

The team must track down two assailants who wear animal masks while committing armed robberies; Tiffany and Scola butt heads on whether or not to accept the local NYPD's offer to help in the investigation.

After a man is killed by an explosive package shipped to his home, the team attempts to capture the sender and intercept his latest deadly parcel; Maggie struggles to trust her younger sister.

The team rushes to track down two doctors abducted by a desperate father willing to do anything to save his son; Jubal's uncertainty in his family life affects his judgement during the hostage situation.

The team heads to Northeast Africa, where they must carefully navigate a minefield to save the lives of local villagers; Paige and Walter's relationship takes a shocking turn; Toby and Happy make an important decision.

When a crisis at LAX prevents dozens of airplanes from landing, the government brings in a group of misfit geniuses to sort things out.

The team is called upon by the governor when a virus leaves his daughter with only 24 hours to live; Walter receives a letter about his sister.

After failing a military training mission, the team members are determined to prove themselves when an Internet infrastructure is threatened by a bomber.

The members of the team disregard Cabe's advice and go to Las Vegas for a casino job; a robbery leads to Walter being arrested.

Walter and the team ask a troubled former associate for help when a nuclear reactor in Los Angeles is on the verge of a cataclysmic meltdown.

The members of the BAU enjoy a Saturday off in vastly different ways; Rossi and Prentiss help Simmons assemble a new crib; Garcia leads a hacking competition; Dr. Reid strikes up a conversation with a woman named Maxine.

Following a series of fatal shootings, the BAU team travels to Illinois to investigate what appears to be a copycat serial killer.

After a father and daughter get kidnapped, a former foe of the BAU returns with very specific demands for Dr. Reid.

When the BAU team travels to Denver to investigate several murders, Prentiss is forced to evaluate her relationship with Special Agent Andrew Mendoza.

Prentiss and J.J. are faced with important decisions to make about their futures as the BAU travels to Texas to investigate a series of murdered businessmen.

Programming to be announced.

Rossi develops some new theories about Everett Lynch, aka The Chameleon; the team sets out on an epic hunt to capture Lynch.

While hallucinating after he gets a brain injury, Dr. Reid is visited by ghosts from his past; the BAU makes a shocking discovery about Lynch that affects Rossi personally; the team comes together to celebrate Rossi's retirement.

The BAU interviews candidates to take the opening left by Kate's departure; the team tracks a serial killer who leaves behind evidence that indicates a person intent on revenge.

Pride and Lasalle travel to war-torn South Ossetia to locate an FBI agent who was kidnapped during a failed mission to apprehend the leader of Apollyon, the underground spy network responsible for murdering Pride's father.

After tracking Apollyon, a deadly underground spy network, to war-torn South Ossetia, Pride is separated from the team and faces grave danger; in order to save Pride, the NCIS team must locate a mole who continues to feed information to Apollyon.

Programming to be announced.

Pride must cut his vacation short when Hannah is suspended for breaking protocol during a joint investigation with the FBI.

A Navy pilot says she saw an unidentified object prior to a private plane crash; Pride suffers from insomnia and nightmares as a result of being kidnapped and drugged last year.

When the CEO of a major brokerage firm is killed while surrounded by protesters, the team looks into who had the most to lose from his company's perceived manipulations; Scola's previous Wall Street career and the reasons he left come to light.

While investigating a mass casualty incident at a New York City restaurant, the team scrambles to determine if it was racially motivated and if there was more than one gunman; Maggie starts to notice troubling behavior from her co-worker Elise.

When five prominent men are gunned down at a trendy New York restaurant, the team's investigation brings them into contact with a lieutenant in Antonio Vargas' cartel, triggering a showdown between Isobel and Vargas.

After a young woman is killed on her way home from a lavish yacht party, the team investigates who she was and how she came to be at the event.

Maggie, OA and the team must stop a hacker who is disabling life-saving equipment in several New York City hospitals; Jubal's son waits for important surgery at one of the impacted hospitals.

The team finds a connection between bombings and a private veterans' club in New York City; Isobel tells a reluctant OA to recruit a former Army buddy for intel.

After being accused of destroying a priceless piece of art, the team must pass a mandated psych evaluation; Paige asks the team for help when Ralph is hesitant to go to the school Halloween party.

Three convicts -- including a brilliant hacker -- escape from prison; Paige tries to manage Ralph's expectations when his dad returns.

A musician -- who created a controversial algorithm to generate hit songs -- helps the team investigate the murder of a music blogger; Drew seeks help connecting with his son.

Cabe's ex-wife needs the team's protection after she discovers evidence that suggests a prominent congressman's death involved foul play.

The team must recover stealth technology from a military plane that was shot down in Bosnia; Walter's sister visits with Sylvester at the garage.

Sylvester ends up in critical condition after accidentally triggering an explosion during an investigation; the team must remain focused on finding the culprit.

The team must find the person responsible for a sarin gas attack on a Los Angeles bus before a larger incident occurs.

The team suspects a jilted unknown subject is responsible when brides are murdered on the eve of their nuptials.

When a robbery-homicide leaves three restaurant employees dead, a cold case that occurred in the same town six years earlier could yield a lead.

A notorious street artist becomes a suspect when corpses are used in macabre graffiti art in Detroit; Dr. Lewis tries to balance work and her relationship with her fiance.

A murder in a Florida community of sex offenders results in a large number of possible suspects; a career opportunity could take Lewis away from the BAU.

Rossi's daughter, a journalist, investigates the disappearance of a college student; JJ comes back from maternity leave.

An unknown subject in Phoenix abducts people and deprives them of sleep; Garcia and Hotch deal with a threat from hit men.

The BAU works with the NSA when two undercover DEA agents are murdered and another goes missing; Hotch hopes the team's work with the NSA will bring them closer to finding a ring of hit men.

Pride travels to New York City after new DNA evidence is linked to a 20-year-old cold case from his past.

The team uncovers a sinister plot by a private detention center contracted by the government to house undocumented immigrants; Lasalle and Sebastian travel to Alabama to search for Lasalle's missing brother.

Navy Lt. Max Landry asks the New Orleans field office for help when he suspects his girlfriend is a spy; Lasalle faces another devastating dead end as he searches for his brother's last known whereabouts.

Lasalle hopes to avenge his brother's murder by tracking a drug ring in Alabama he believes is responsible; when Pride assists with the case, he crosses paths with Eddie Barrett, an elusive individual who knows more than he is sharing.

The team hunts for a serial killer who is targeting young, homeless men; Tiffany and Scola don't see eye to eye on how to handle the case.

After a suburban woman is kidnapped from her home, the team looks into trysts on both sides of a seemingly perfect marriage; OA feels pressure from Mona to make changes in his career path.

The team must track down a shooter targeting detectives from the same precinct and unit while facing mounting tension from the NYPD; Tiffany finds that her NYPD roots may be influencing her view of the situation.

After a young girl is kidnapped from her daycare, the team must help her parents navigate a debt owed to the deadly gang in their neighborhood; Maggie struggles to focus on the case when her sister returns from rehab.

A widow is shocked that her new "boyfriend" is the manipulative leader of a terrorist group planning an attack; Scola is reminded of his brother's death on 9/11; Tiffany worries about his emotional choices during the investigation.

After Rina is critically wounded while heading to work with Jubal; the team makes the chilling discovery that a vengeful Vargas orchestrated the shooting from behind bars and continues to target the rest of their team and their loved ones.

Detectives Lupo and Bernard think a violent armed robbery might be a scare tactic for a shakedown.

When a campaign volunteer is murdered, Detectives Lupo and Bernard end up dealing with more than just dirty politics.

When a journalist is found dead in an abandoned apartment, the investigation uncovers a relationship between the victim and a daytime talk-show host, who admits to a series of workplace affairs and a blackmail threat.

When a family is found murdered at home, a runaway teenager becomes a suspect.

The investigation of a 16-year-old student whose body was burned causes Lupo and Bernard to question the young person he mentored, the last person to see him alive; the investigation draws attention to a vicious high-school rivalry.

A woman's body is found stashed on a food service cart in a hotel; Detectives Bernard and Lupo discover evidence that leads them to a medical school research project.

After a man is found guilty of a hate crime, Emily Ryan (Amy Madigan) and The Innocence Collective try to prove his innocence.

Detectives Lupo and Bernard tackle a complex case when four police officers are shot.

When Dr. Oscar Silva, an environmental scientist, is poisoned during a conference, Lupo and Bernard suspect competitors from Silva's field of study.

When the body of a model is found burning in an alley, Detectives Lupo and Bernard search for her killer.

When a young heiress dies of an apparent drug overdose, Lupo and Bernard begin to suspect her cousin, whose inheritance increased after her death.

A man's double life comes to light after he is stabbed to death.

When a reality TV crew finds a dead man's body locked in a dog cage, detectives suspect the victim's wife.

Detectives search for an anonymous blogger who has posted plans to blow up a school; Lt. Van Buren struggles to keep her personal issues private.

M'Lynn (Sally Field) is the mother of bride-to-be Shelby Eatenton (Julia Roberts), and as friend Truvy Jones (Dolly Parton) fixes the women's hair for the ceremony, they welcome a helping hand from aspiring beautician Annelle Dupuy Desoto (Daryl Hannah). Diabetic Shelby has a health scare, which is averted but doesn't bode well for her hopes of having children. Time passes, and the women and their friends encounter tragedy and good fortune, growing stronger and closer in the process.

Lonely transit worker Lucy Eleanor Moderatz (Sandra Bullock) pulls her longtime crush, Peter (Peter Gallagher), from the path of an oncoming train. At the hospital, doctors report that he's in a coma, and a misplaced comment from Lucy causes Peter's family to assume that she is his fiancée. When Lucy doesn't correct them, they take her into their home and confidence. Things get even more complicated when she finds herself falling for Peter's sheepish brother, Jack (Bill Pullman).

Liam Page is a country music superstar who left his bride Josie at the altar to pursue fame and fortune. Page never got over Josie, his one true love, or forgot his Southern roots in the small community where he was born and raised. Now, he must unexpectedly face the consequences of his actions when he returns to his hometown for the funeral of his best friend from high school.

McGee and his wife Delilah's Bahamian vacation turns into a high-stakes mission; Gibbs fears the worst when his search for Fornell leads to blood.

Following a tip about smuggled weapons, Bishop and Torres engage in a shootout in a former sheriff's residence that's now a historical site, only to find themselves locked in abandoned jail cells there.

NCIS investigates the murder of a Navy officer who was killed while driving home a recently released inmate; Gibbs helps Palmer deal with a personal trauma.

When Sloane's name is discovered in Afghanistan at the site of an abandoned bus with a dead driver, Gibbs accompanies her on a trip to find a group of girls who were kidnapped from the bus; a hacker emails compromising information to the Taliban.

As the team investigates a string of jewelry store robberies that culminate in a double murder, they uncover a connection to a 16-year-old boy trying to survive the foster care system.

The team searches for an abducted college coed; Jubal has a tense encounter with Rina's mother.

Maggie goes under cover working in a bar to investigate an anti-government group that regularly gathers there; a single father on the periphery of the group begins to fear he's in danger of becoming collateral damage.

When a Muslim college student and his younger brother are murdered, the team connects with the outraged imam of OA's former mosque, who insists the victims were wrongly targeted as terrorists.

Liam Page is a country music superstar who left his bride Josie at the altar to pursue fame and fortune. Page never got over Josie, his one true love, or forgot his Southern roots in the small community where he was born and raised. Now, he must unexpectedly face the consequences of his actions when he returns to his hometown for the funeral of his best friend from high school.

Lonely transit worker Lucy Eleanor Moderatz (Sandra Bullock) pulls her longtime crush, Peter (Peter Gallagher), from the path of an oncoming train. At the hospital, doctors report that he's in a coma, and a misplaced comment from Lucy causes Peter's family to assume that she is his fiancée. When Lucy doesn't correct them, they take her into their home and confidence. Things get even more complicated when she finds herself falling for Peter's sheepish brother, Jack (Bill Pullman).

M'Lynn (Sally Field) is the mother of bride-to-be Shelby Eatenton (Julia Roberts), and as friend Truvy Jones (Dolly Parton) fixes the women's hair for the ceremony, they welcome a helping hand from aspiring beautician Annelle Dupuy Desoto (Daryl Hannah). Diabetic Shelby has a health scare, which is averted but doesn't bode well for her hopes of having children. Time passes, and the women and their friends encounter tragedy and good fortune, growing stronger and closer in the process.

Following a natural gas explosion at a movie theater, the team discovers the gas company has been hacked and more explosions could be triggered.

Sebastian calls the team to assist with a possible kidnapping case when a dignitary's son he was assigned to protect disappears from a local concert venue.

After Eddie Barrett provides an alibi witness, Pride and the team are more determined than ever to find a break in the case and avenge Lasalle's murder.

Pride is cut off from the team and backed into a corner after the investigation into Eddie Barrett uncovers a malicious plot.

The team is concerned when Sebastian becomes unreachable while under cover as a new recruit.

The team must track down a mysterious female assassin responsible for murders in Athens, Rome and London; Wade's son begs her to allow him to go on a police ride-along for an article he's writing on a youth outreach program.

The team investigates the murder of a JAG captain who was discovered at home by his daughter, the only heir to his large estate; Sebastian is intimidated when he is put in charge of a team on his first day of training.

NCIS dives into the competitive world of food trucks after finding a man frozen to death in the back of one.

The team uncovers a secret dogfighting ring, which leads to an unexpected move by one of the team members.

Gibbs and Fornell's crusade to find the head of the drug ring responsible for Fornell's daughter Emily's overdose comes to a climax; Gibbs and Vance finally let the team in on a case that has dangerous implications.

Vance assigns McGee, Torres and Bishop to COVID compliance duty at a foreign affairs summit, where they discover a link to another NCIS team's murder case.

Evidence from the stabbing of a Marine sergeant leads Torres to meet his father, who left when Torres was a child.

The team investigates a biker killed in a hit-and-run; Gibbs prepares to testify against a financial adviser who stole millions from his Navy clients.

NCIS tracks a stolen laptop to the uncle of a young boy, Phineas, Gibbs' former neighbor.

When members of an NCIS Regional Enforcement Action Capabilities Training Team are killed during an explosion, NCIS Special Agent Jessica Knight, the lone surviving member, helps crack the case using high-tech body armor.

While pursuing a dangerous arms dealer, the team is shocked when Bishop is implicated in an old NSA leak; Gibbs and Marcie realize the killer they've been tracking may be onto them.

As the NCIS team searches for Gibbs after wreckage from his boat is discovered; they find out he was tracking a serial killer with journalist Marcie Warren, who wrote an exposé on him.

While trying to find the serial killer Gibbs was after, the NCIS team discovers another person has been tracking the case as well.

Gibbs and Parker go on a road trip to find one of the serial killer's victims; Agent Knight goes under cover at a large manufacturing company with ties to the murders.

The members of the BAU team track an unknown subject who appears to be fascinated with medical experimentation.

Reid plays a central role in the BAU's elaborate plan to take down a ring of hit men known as the Dirty Dozen.

When corpses are discovered in public places in Boston, a ride-sharing service may lead the team to the killer.

The BAU looks for a suspect and a motive when victims are found in truck stop restrooms in the South.

An 18-year-old woman escapes from the home where she and two other women were held captive for years.

The BAU team combs Los Angeles for a suspect after security footage is discovered, which shows an unknown subject being invited into victims' homes.

When Morgan is abducted, the members of the BAU team race against time to find him and save his life.

The team searches for an unknown subject who takes children while their parents are asleep; Morgan tries to find out who attacked him.

When Pride is unable to sleep due to continuing nightmares about the mysterious man in the red suit; he undergoes a specialized treatment to help him figure out the man's identity; an arrogant new officer joins the team.

Tammy must protect a teenage girl after her father is shot in their home; the rest of the team searches for a motive.

When a man impersonating Lasalle attempts to free a young woman from jail, the team investigates both the impostor and the prisoner; Pride's daughter pays him a surprise visit.

Racial tensions rise in New Orleans when a white officer shoots a black Navy officer he believed was armed in the middle of a busy street party.

When a Navy sailor is found dead, the team tracks the suspicious movements of people in his life prior to his death; Hannah comes to terms with her daughter's relationship with her ex's new girlfriend.

When Sebastian is injured while unsuccessfully trying to prevent a kidnapping, NCIS races to find the missing woman and her abductors; the team gets a peek into Agent Carter's personal life.

The team investigates the death of a Naval microbiologist whose hobby as a "myth buster" resulted in his death at the hands of a legendary bayou creature; Agent Khoury conducts an investigation into previous actions of Deputy Director Van Cleef.

A troubled young man (guest star Wil Horneff) motivated by his religious beliefs becomes the prime suspect in a double homicide.

The murder of a high-school English teacher reveals a love triangle involving a 16-year-old and her faculty lover.

A rock singer's body is found in a garbage can with large amounts of heroin and cocaine in her system.

Detectives hope vacation video shot by a couple will help lead them to the murderer of an actress found shot to death in her apartment, but matters get complicated when the tourists decide to make a quick buck by selling the tape to a TV station.

A diamond ring identifies the skeletal remains of a murder victim who was believed killed in the World Trade Center collapse.

Detectives suspect a young bride and her reputed lover (guest stars Gretchen Egolf and Bobby Cannavale) hired a hit on her husband.

The acquittal of an alleged cop-killer leads to the murder of a defense attorney and a suspect who may belong to a white supremacy group.

Detectives accuse a professional ballplayer of killing the limousine driver who supplied him with steroids.

Detectives accuse a professional ballplayer of killing the limousine driver who supplied him with steroids.

The smoldering corpse of an Asian girl is found outside the Chinese consul general's apartment, and detectives suspect she immolated herself as a political statement.

The smoldering corpse of an Asian girl is found outside the Chinese consul general's apartment, and detectives suspect she immolated herself as a political statement.

Detectives suspect foul play when a teenager dies after being struck by a vehicle in front of a coffee shop.

Detectives suspect foul play when a teenager dies after being struck by a vehicle in front of a coffee shop.

When half of a two-man gambling operation is found murdered, the detectives finger his partner as the prime suspect.

When half of a two-man gambling operation is found murdered, the detectives finger his partner as the prime suspect.

A vigilante priest kills a notorious drug dealer in the name of God; Briscoe is reminded of his daughter's death at the hands of a trafficker.

A vigilante priest kills a notorious drug dealer in the name of God; Briscoe is reminded of his daughter's death at the hands of a trafficker.

Two seemingly unrelated murders, stolen jewels and a case of mistaken identity lead to a defendant being tried for a crime without being present at the trial. Mandy Patinkin and Andrew McCarthy guest star.

Two seemingly unrelated murders, stolen jewels and a case of mistaken identity lead to a defendant being tried for a crime without being present at the trial. Mandy Patinkin and Andrew McCarthy guest star.

When a car salesman is found bludgeoned to death, Detectives Briscoe and Green search for his last customer.

A cosmetics tycoon (Lucie Arnaz) is involved in controversial stock transactions, scandalous affairs and hormone-replacement therapy.

A media-savvy attorney (Gregory Hines) defends a black teenager accused of shooting an off-duty police officer.

Detectives investigating a cabdriver's death discover his last fare was a gifted writer with a violent streak.

After a woman's body turns up in the East River, the detectives discover she recently had attended a professional football player's birthday party.

The team investigates an extremist gun group after an anti-gun lobbyist building is bombed; SAC Bashar dangles a possible promotion for OA.

The team realize they have a cross-country serial killer on their hands; the case has ties to Isobel's father, Robert, and his hotel, leading to revelations about their fractured relationship.

After an immigration agent is fatally shot at a hockey game, the team attempts to find the shooter, who they believe may also be targeting Congressman Curtis Grange, who was at the same game.

When a young couple is found murdered in a New York City park after returning from a vacation, the team searches for a suspect linked to the drug trade; Scola turns over a new leaf when it comes to his relationships.

OA is forced to confront one of his biggest fears when the team discovers that deadly sarin gas may have been sold to terrorists.

When a morning show host is murdered inside her home, the team tracks the killer; things become awkward for Scola when agent Nina Chase becomes part of the team during Maggie's recovery.

A killer is using drug mules to exploit airport security checkpoints; OA struggles to cope with the aftermath of the sarin gas exposure and the 10th anniversary of his army friend's death in Afghanistan.

On Christmas Eve, a boy is trapped in a beach-side cave, where the rising tide threatens his life; the team races to find a way to save him.

The team tries to help Ralph when he is taken by the FBI for questioning after his web game play unintentionally reveals a CIA safe house's location.

The team searches for a CIA mole who has been coerced into stealing deadly chemicals; Paige shows Walter how to flirt.

The team must help an injured former Secret Service agent regain his memory in order to stop the launching of weapons of mass destruction.

The team members go under cover on a cruise ship in order to locate and disable stolen rockets; as Valentine's Day approaches, Ralph develops a crush.

The members of the team travel to Mexico when the daughter of a tech billionaire is abducted; Walter participates in an interview that leads to hurt feelings.

When an unsub targets the BAU, the team pursues the person who is responsible for the actions.

Emily looks to the BAU for help when tracking an international serial killer; the BAU deals with Morgan's departure.

The BAU hunts for an UnSUB who deliberately disfigures victims; Rossi and his ex-wife have an uncomfortable reunion.

The BAU plays a dangerous cat and mouse game with a convicted serial killer who may have information on the whereabouts of two kidnapped boys.

Hotch is arrested by a SWAT team and suspected of conspiracy; when the team members scramble to prove Hotch's innocence, they discover a larger plot may be on the horizon.

New recruit Luke Alvez helps the team capture a killer who escaped from prison with 12 other convicts.

J.J. is shaken after investigating the case of two abducted children, and tells her husband about the events.

As the BAU welcomes back Emily Prentiss, they're called upon to investigate the disappearance of three women.

As New Orleans grapples with the effects of COVID-19, Pride sends Tammy and Carter to investigate a suspicious death aboard an offshore humanitarian ship; Wade is overwhelmed by the high volume in the morgue due to COVID-19.

Tammy and Carter continue to investigate a suspicious death aboard a COVID-infected humanitarian ship; Pride and the team discover what may be the key to finding the killer; Wade helps a grieving woman.

Pride and the team take on a group of dirty cops when they discover that a murder victim was also a key witness in multiple excessive force cases; Tammy faces the reality of being in a new relationship.

The team continue to investigate the murder of an officer who was about to blow the whistle on police misconduct; Pride must get creative in order to finally get rid of the dirty cops; the mayor asks Pride to join her new task force.

When a retired Drug Enforcement Administration agent is shot outside a bakery, the team works to determine if the victim's past cases or current bouncer job are connected to the murder; Nina and Tiffany clash over the use of an informant.

A robbery in New York leaves a deadly trail of blood in its wake, and the killers loot an arsenal of fully automatic weapons in the process.

The team pivots when their sting operation to secure a massive bomb from an illegal broker leads them to discover that the device is already in the wrong hands; Jubal's promise to be present at his son's birthday party is put to the test.

When an officer is shot dead at a pawn shop along with the store's owner, the team tries to figure out why a young, recent Ivy League dropout is tied to the crime.

When a wealthy accountant is gunned down for secretly testifying against a notorious drug lord, the team's investigation leads Tiffany to ask for help from a friend who was formerly with the NYPD and is related to the dangerous crime boss.

The team investigates a series of brutal assaults; OA hides information about his own mugging.

The team must facilitate peace discussions when a conflict in Eastern Europe threatens to escalate into World War III.

As the members of team Scorpion try to save lost hikers, their helicopter crashes, igniting a large wildfire and injuring the pilot.

The team protects a witness who is on her way to testify against a dangerous drug cartel -- while the cartel is in hot pursuit.

When Walter finally learns Cabe's secret about the Baghdad mission, the future of the team is threatened; Ralph puts his life in jeopardy to help the team.

When Walter's car ends up at the edge of a cliff, the fractured team must come together for their most important mission yet.

When a nuclear powered Russian satellite is knocked out of orbit, the new Director of Homeland Security reunites the team; Paige and Walter confront their feelings.

The team searches for a serial killer along the Appalachian Trail in rural Virginia.

The BAU investigates the case of two murdered families, where two high school students are the sole survivors.

Three children vanish while riding their bikes on the same path where a similar unsolved disappearance took place 30 years earlier.

A man who believes himself to be the brother of Dr. Tara Lewis arrives in town, knowing everything about Tara's family; Tara is unable to make contact with her real brother.

The BAU team investigates when the remains of a dozen people are discovered along a creek bed in Yakima, Wash.

While conducting a profiling course on his birthday, Rossi gets a call from serial killer Tommy Yates, who gives him the location of his latest victim.

The team investigates when home invasions involving casualties strike upscale neighborhoods in San Diego.

The BAU investigates when a bizarre hieroglyph is found under a deceased homeless man's armpit; Reid decides to take his mother out of a clinical study early to bring her home.

The team investigates a suspicious death and the missing key piece of evidence is a top secret, high-tech battery; Pride and the team realize there could be deadly consequences if it falls into the wrong hands.

When a torpedo hits a fishing trawler at sea, the entire Gulf Coast is in jeopardy as Pride and NCIS race to find the submarine before it can strike again.

A Navy therapist who is working to get justice for victims of sexual assault is murdered; Carter's mother confronts him when he refuses to talk to the FBI for a background check on her behalf.

As Pride and the team continue the investigation of an officer's assault and the murder of her therapist, NCIS zeroes in on a suspect who's been working the system for years; Carter and his mother talk about how they'll move forward after a mistake.

As the team works to rescue a 5-year-old kidnapping victim, Scola suspects the boy's mother isn't being forthcoming about why her son was targeted; Nina struggles to open up to Scola about matters in their relationship.

Maggie returns from medical leave and helps the team investigate two homicides: a law student and a young man with possible gang ties; an inadvertent revelation from Maggie causes OA to worry that she is rushing back into the job too quickly.

When a deadly truck heist arms the killers with enough ammonium nitrate to construct a massive bomb, the team discovers a link to a terrorist group Maggie is working to infiltrate.

A teen shows up at FBI headquarters with a large bag of fentanyl, seeking the team's protection from the men who shot his father; Nina goes to Scola with a proposal he is hesitant to accept.

The team jumps into action when analyst Kelly Moran is taken hostage.

The abduction of a young woman leads the team back to a cold case from 18 years ago, which pushes Isobel to reconnect with her old partner Jake and take another shot at solving one of her first cases at the bureau.

When a woman from Cabe's past asks for help apprehending a war criminal, the members of Team Scorpion travel to Cuba.

Sylvester goes under cover in a federal prison in hope of saving three judges' lives; the team must orchestrate a prison break when Sylvester's life is threatened.

An explosion sends a top-secret submarine to the bottom of the ocean with limited oxygen, a self-destruct function that's about to activate, and Walter, Cabe and Happy on board.

The members of the team go under cover on a movie set in Kazakhstan in hopes of disabling a Soviet-era nuclear missile being sold by terrorists.

A nefarious virus is uploaded to Walter's computer, turning the team's new "smart" building project into a death trap with people locked inside.

A nefarious virus is uploaded to Walter's computer, turning the team's new "smart" building project into a death trap with people locked inside.

The BAU team is called in to investigate when male bodies are discovered that seem to be impossible to identify.

When a BAU member gets in trouble in Mexico, the team enlists the services of the International Response Team for help.

The BAU looks into the cause of several fatal car crashes involving drivers and pedestrians; Reid gets bad news.

The BAU investigates a series of disfiguring acid attacks on young men and women; Dr. Reid begins to settle into his new surroundings.

A mother steps forward with valuable information for the BAU to aid in their investigation of an unsub known as the bone crusher; Reid must adapt to a new set of rules in prison.

The BAU believes two unsubs may be operating simultaneously when victims killed in two different ways are discovered in the same city; the team grapples with keeping Reid safe in prison.

The BAU investigates an urban vampire who kidnaps his victims at night and holds them underground in the sewer system; Reid makes a difficult decision in prison.