At the end of World War II, many Nazi officials were captured and tried for their crimes; but one of the architects of the Holocaust, Adolf Eichmann, slipped through the cracks, repeatedly eluding Nazi hunters from around the globe.

The world's most famous painting vanishes in a daring heist, sparking international outrage and a global manhunt; a master detective is called in, who zeroes in on a handful of suspects with the motive and means to pull off the theft; who stole the legendary Mona Lisa?

Host Giorgio Tsoukalos probes the series archives to explore remarkable ancient structures that defy conventional explanation. From the precisely cut stone blocks at Puma Punku, to the gigantic temples of Malta, and the megalithic city of Nan Madol, could these mysterious sites contain evidence of extraterrestrial contact in the distant past?

One of history's most notorious pirates, Blackbeard, is said to have had a treasure worth millions of dollars; after centuries of searching, the legendary hoard remains missing.

In 1698, Capt. William Kidd raids a ship on the high seas and seizes its vast treasure, but Kidd is hanged before revealing where he stashed the loot; a look at what happened to the lost booty and where it is now.

An Aztec king's glittering treasure vanishes into thin air, inspiring a 500-year search that spans continents; one of the greatest warriors of all-time amassed a vast horde believed to be worth more than $3 billion today.

The surgical teams must somehow cope with a critical shortage of blood during a grueling 18-hour operating session.

Maj. Houlihan's fiance arrives at the 4077th and shocks Frank by asking him to be his best man.

Thunder and lightning threaten logger Kevin Wenstob's crew as they shift into high gear on his high mountain timber claim.

Mike restores a 1941 Ford Super Deluxe and a 1964 Ford Fairlane 500; a natural disaster threatens the shop.

The recent glacier expedition leaves Kru rattled and rethinking his approach; clues left by an Indigenous voice from the past send the entire team north into the wild terrain of the Upper Pitt in search of Slumach's gold.

Thunder and lightning threaten logger Kevin Wenstob's crew as they shift into high gear on his high mountain timber claim.

Mike restores a 1941 Ford Super Deluxe and a 1964 Ford Fairlane 500; a natural disaster threatens the shop.

A jewelry box contains something valuable; a biking teen hits a roadblock; a Thai sailor may be land-locked over computer content; a vagabond musician must prove his worth.

The X-ray machine isn't fooled by aluminum foil wrapping; a truck full of plastic seems like it may have been tampered with.

Charles Winchester joins the team; Hot Lips returns from her honeymoon; Klinger learns that his lawyer is a phony.

Charles Winchester is unhappy with his surroundings at the 4077th; Frank receives psychiatric treatment to get over his love affair with Hot Lips.

In California, Mexican immigrant Joaquin Murrieta forms a gang of outlaws that spreads terror across the state; a posse of California Rangers, led by Harry Love, takes Murrieta down - but his legend as a hero to the downtrodden lives on to this day.

When Kansas becomes a battleground in the national debate over slavery, settlers on both sides of the issue pour into the territory to determine its future as a free or slave state in its eventual admission to the Union.

When Civil War veteran Col. Henry Carrington takes command of Fort Phil Kearny in Northern Wyoming, he never expects to face such a ferocious enemy as Red Cloud's band of Lakota Sioux.

In northern Wyoming's Powder River Valley, a group of ranchers band together to protect their rights to graze cattle; a powerful cabal of cattle barons smear the ranchers as common thieves and plot an invasion.

Charles Winchester joins the team; Hot Lips returns from her honeymoon; Klinger learns that his lawyer is a phony.

Charles Winchester is unhappy with his surroundings at the 4077th; Frank receives psychiatric treatment to get over his love affair with Hot Lips.

A family appear to drive in their car that is chased by an angry Bigfoot; a UFO supposedly nearly hit a plane flying over New York City; is the spirit of a deceased student haunting a high school football game?

The world's most famous painting vanishes in a daring heist, sparking international outrage and a global manhunt; a master detective is called in, who zeroes in on a handful of suspects with the motive and means to pull off the theft; who stole the legendary Mona Lisa?

Host Giorgio Tsoukalos probes the series archives to explore remarkable ancient structures that defy conventional explanation. From the precisely cut stone blocks at Puma Punku, to the gigantic temples of Malta, and the megalithic city of Nan Madol, could these mysterious sites contain evidence of extraterrestrial contact in the distant past?

Hotspots of unexplained activity exist across America - specific regions where encounters with unknown creatures and supernatural forces seem to repeat again and again. From the famed Skinwalker Ranch in Utah, to the monstrous Mothman in Point Pleasant, West Virginia, to the Texas Dogman Triangle, the Bigfoot that calls the Klammath mountains of California home, and the numerous possession accounts that haunt Pittsburgh.

From clandestine nuclear weapons programs to a secret Cold War bunker hidden in the mountains, or even World War 2 technology at the bottom of the sea, we explore the unlikely people, and surprising places behind the discoveries of the most top-secret information.

A family appear to drive in their car that is chased by an angry Bigfoot; a UFO supposedly nearly hit a plane flying over New York City; is the spirit of a deceased student haunting a high school football game?

Hotspots of unexplained activity exist across America - specific regions where encounters with unknown creatures and supernatural forces seem to repeat again and again. From the famed Skinwalker Ranch in Utah, to the monstrous Mothman in Point Pleasant, West Virginia, to the Texas Dogman Triangle, the Bigfoot that calls the Klammath mountains of California home, and the numerous possession accounts that haunt Pittsburgh.

From clandestine nuclear weapons programs to a secret Cold War bunker hidden in the mountains, or even World War 2 technology at the bottom of the sea, we explore the unlikely people, and surprising places behind the discoveries of the most top-secret information.

In California, Mexican immigrant Joaquin Murrieta forms a gang of outlaws that spreads terror across the state; a posse of California Rangers, led by Harry Love, takes Murrieta down - but his legend as a hero to the downtrodden lives on to this day.

When Kansas becomes a battleground in the national debate over slavery, settlers on both sides of the issue pour into the territory to determine its future as a free or slave state in its eventual admission to the Union.

When Civil War veteran Col. Henry Carrington takes command of Fort Phil Kearny in Northern Wyoming, he never expects to face such a ferocious enemy as Red Cloud's band of Lakota Sioux.

Charles Winchester joins the team; Hot Lips returns from her honeymoon; Klinger learns that his lawyer is a phony.

Charles Winchester is unhappy with his surroundings at the 4077th; Frank receives psychiatric treatment to get over his love affair with Hot Lips.

Logger Kevin Wenstob gets terrible news as his crew struggles to bring the last of their 200 truckloads of logs off the mountain before winter shuts them down.

Connor restores a 1967 Chevy II behind Mike's back; Mike installs an engine in a 1964 Ford F100 truck.

Reports of a jar of gold send Adam and Kru on the trail of missing prospector Volcanic Brown and his last known location; Don and Taylor investigate a strange marking on the prospector tools found in the Upper Pitt.

Logger Kevin Wenstob gets terrible news as his crew struggles to bring the last of their 200 truckloads of logs off the mountain before winter shuts them down.

Connor restores a 1967 Chevy II behind Mike's back; Mike installs an engine in a 1964 Ford F100 truck.

A British traveler hopes to turn their back on their failed marriage; officers do a close inspection of a car that may contain drugs.

A foreign student's possessions are full of surprises; an X-ray machine finds a strange shape inside of a container.

Radar becomes depressed when he thinks that his manhood has not been fulfilled.

B.J. receives a visit from an old college friend who proceeds to play practical jokes on the M*A*S*H members.

Danny must do a full bumper-to-bumper restoration on a '66 Mustang convertible, but after stripping it down, he finds very little car between her bumpers; Danny must to decide between asking for more money or losing a bunch of his own.

Danny and the team continue wrestling with a stock restoration Mustang mess, hoping for extra funds and a lot of patience from their client; Kevin spots a rare old Grand Prix and Danny visits a world-class specialist, looking for ideas.

Danny takes on a job restoring a family's '67 Ford Mustang and visits the Shelby Heritage Center for inspiration.

Danny and his crew look at some of the most classic rides in the history of Counting Cars: a museum worthy 1914 Model T pie wagon; a 1960 Cadillac coupe; a tricked out '35 Ford pickup street rod; a 1953 Henry J Corsair.

Danny has big plans for a little street rocket known as a Manta; the crew commissions a 1980s Corvette that the owner wants to bring into the new millennium; Shannon meets a lady motorcycle racer who wants her Harley XR1200 customized.

Danny Koker restores a 1969 Shelby GT500 numbers-matching car from a rust bucket into an instant classic; the team visits the Detroit Autorama to check out the Ridler Award competition where million-dollar cars are the norm.

Radar becomes depressed when he thinks that his manhood has not been fulfilled.

B.J. receives a visit from an old college friend who proceeds to play practical jokes on the M*A*S*H members.

Danny must do a full bumper-to-bumper restoration on a '66 Mustang convertible, but after stripping it down, he finds very little car between her bumpers; Danny must to decide between asking for more money or losing a bunch of his own.

Danny and the team continue wrestling with a stock restoration Mustang mess, hoping for extra funds and a lot of patience from their client; Kevin spots a rare old Grand Prix and Danny visits a world-class specialist, looking for ideas.

From clandestine nuclear weapons programs to a secret Cold War bunker hidden in the mountains, or even World War 2 technology at the bottom of the sea, we explore the unlikely people, and surprising places behind the discoveries of the most top-secret information.

From killer hurricanes and tsunamis to earthquakes, floods and fires, these are the deadliest natural disasters ever recorded.

The guys pick a Tennessee stockpile that's been untouched for decades and uncover dinosaur fossils at a Kansas boneyard.

From junkyard jalopies to long-lost classics, explore the rare wheels and automobilia lost to time that yield some good deals.

Danny takes on a job restoring a family's '67 Ford Mustang and visits the Shelby Heritage Center for inspiration.

Danny and his crew look at some of the most classic rides in the history of Counting Cars: a museum worthy 1914 Model T pie wagon; a 1960 Cadillac coupe; a tricked out '35 Ford pickup street rod; a 1953 Henry J Corsair.

The guys pick a Tennessee stockpile that's been untouched for decades and uncover dinosaur fossils at a Kansas boneyard.

From junkyard jalopies to long-lost classics, explore the rare wheels and automobilia lost to time that yield some good deals.

Danny must do a full bumper-to-bumper restoration on a '66 Mustang convertible, but after stripping it down, he finds very little car between her bumpers; Danny must to decide between asking for more money or losing a bunch of his own.

Danny and the team continue wrestling with a stock restoration Mustang mess, hoping for extra funds and a lot of patience from their client; Kevin spots a rare old Grand Prix and Danny visits a world-class specialist, looking for ideas.

Danny Koker restores a 1969 Shelby GT500 numbers-matching car from a rust bucket into an instant classic; the team visits the Detroit Autorama to check out the Ridler Award competition where million-dollar cars are the norm.

Danny has big plans for a little street rocket known as a Manta; the crew commissions a 1980s Corvette that the owner wants to bring into the new millennium; Shannon meets a lady motorcycle racer who wants her Harley XR1200 customized.

Radar becomes depressed when he thinks that his manhood has not been fulfilled.

B.J. receives a visit from an old college friend who proceeds to play practical jokes on the M*A*S*H members.

Spring is here, and with just weeks to finish logging before he has to give his timber claim back, Kevin invests money he doesn't have on big plans to get the job done but when everything starts to go wrong, he's not sure he'll make his deadline.

Mike risks ruin when he resurrects his costly restoration of a 1968 Camaro; new shop manager Avery sends the budget soaring on a 1966 Super Bee and they discover that thieves may be stealing parts from the Field of Dreams.

Clues revealed in Katzie First Nation history lead the team north; Kru unearths 100-year-old court documents that shed light on Slumach himself.

Spring is here, and with just weeks to finish logging before he has to give his timber claim back, Kevin invests money he doesn't have on big plans to get the job done but when everything starts to go wrong, he's not sure he'll make his deadline.

Mike risks ruin when he resurrects his costly restoration of a 1968 Camaro; new shop manager Avery sends the budget soaring on a 1966 Super Bee and they discover that thieves may be stealing parts from the Field of Dreams.

A tattoo artist brings the tools of his trade on his vacation; homemade treats conceal a deadly surprise.

A traveler swallows an unknown substance; a Thai vacation guide offers more than holiday advice; a car dealer takes a long road to the truth; hard iced tea and a passenger bring attention to a trucker.

Col. Potter asks a wounded psychiatrist to counsel some of the team because morale is low.

Charles Winchester records a letter to his wealthy father begging him to use his influence to get him out of the unit.

Rick tries to hook a deal when a signed Jaws poster comes into the shop. Will the seller bite or will Rick say "We're gonna need a bigger offer?" Then, Chum takes aim at a crossbow gun. Will he have a deal in his crosshairs, or will he miss the mark? Later, Rick hopes for a golden ticket when a seller brings in a rare golden Willy Wonka Funko Pop! And finally, Corey antes up on a set of watches from the World Series of Poker.

A set of replica Muppets has Chum feeling green with envy; Rick flips over an autograph book from the 1800s; a pair of pants supposedly worn by Keith Richard; Rick pops over to a L.A. gallery.

Rick and Chum rack up points testing the merchandise at a pinball paradise; Corey saddles up to a piece of World War II history; Chum sleuths out a sale on a set of Sherlock Holmes books; Rick welcomes Guns N' Roses guitarist, ASHBA.

Rick checks out a horde of coins from Kentucky; Chum gets into the spirit when a mentalist brings in a magical clock.

Col. Potter asks a wounded psychiatrist to counsel some of the team because morale is low.

Charles Winchester records a letter to his wealthy father begging him to use his influence to get him out of the unit.

Rick tries to hook a deal when a signed Jaws poster comes into the shop. Will the seller bite or will Rick say "We're gonna need a bigger offer?" Then, Chum takes aim at a crossbow gun. Will he have a deal in his crosshairs, or will he miss the mark? Later, Rick hopes for a golden ticket when a seller brings in a rare golden Willy Wonka Funko Pop! And finally, Corey antes up on a set of watches from the World Series of Poker.

The guys pick a Tennessee stockpile that's been untouched for decades and uncover dinosaur fossils at a Kansas boneyard.

From junkyard jalopies to long-lost classics, explore the rare wheels and automobilia lost to time that yield some good deals.

When a seller brings in a life-sized E.T. statue, Rick tries to make an out of this world deal. Will he dial up a great offer, or will he need to phone home for something better? Then, Corey takes a shot at a book about John Wilkes Booth. But can he pull the trigger, or will the deal be eradicated? Later, Rick tries to stay afloat when he checks out a unique Romain Jerome watch. And finally, Corey and Chum try to rake in the dough when they take a look at an antique breadbox.

As a drastic drop in water levels scrambles the swamp, Mr. Daniel challenges Zak to haul in an unheard-of 100 feet of gator; Bruce and Anna flee crushing boat traffic and wind up deep in a remote slough; battling through a marsh full of tiny lizards, Ronnie and Timmy make a radical mid-day change; Jacob and Little Willie chase the legendary "Crocogator"; Troy's solo grind forces him to call in Chase, as father and son race daylight to finish running 100 lines.

Rick tries to hook a deal when a signed Jaws poster comes into the shop. Will the seller bite or will Rick say "We're gonna need a bigger offer?" Then, Chum takes aim at a crossbow gun. Will he have a deal in his crosshairs, or will he miss the mark? Later, Rick hopes for a golden ticket when a seller brings in a rare golden Willy Wonka Funko Pop! And finally, Corey antes up on a set of watches from the World Series of Poker.

When a seller brings in a life-sized E.T. statue, Rick tries to make an out of this world deal. Will he dial up a great offer, or will he need to phone home for something better? Then, Corey takes a shot at a book about John Wilkes Booth. But can he pull the trigger, or will the deal be eradicated? Later, Rick tries to stay afloat when he checks out a unique Romain Jerome watch. And finally, Corey and Chum try to rake in the dough when they take a look at an antique breadbox.

As a drastic drop in water levels scrambles the swamp, Mr. Daniel challenges Zak to haul in an unheard-of 100 feet of gator; Bruce and Anna flee crushing boat traffic and wind up deep in a remote slough; battling through a marsh full of tiny lizards, Ronnie and Timmy make a radical mid-day change; Jacob and Little Willie chase the legendary "Crocogator"; Troy's solo grind forces him to call in Chase, as father and son race daylight to finish running 100 lines.

A set of replica Muppets has Chum feeling green with envy; Rick flips over an autograph book from the 1800s; a pair of pants supposedly worn by Keith Richard; Rick pops over to a L.A. gallery.

Rick and Chum rack up points testing the merchandise at a pinball paradise; Corey saddles up to a piece of World War II history; Chum sleuths out a sale on a set of Sherlock Holmes books; Rick welcomes Guns N' Roses guitarist, ASHBA.

Rick checks out a horde of coins from Kentucky; Chum gets into the spirit when a mentalist brings in a magical clock.

Col. Potter asks a wounded psychiatrist to counsel some of the team because morale is low.

Charles Winchester records a letter to his wealthy father begging him to use his influence to get him out of the unit.

As the clock counts down on the end of Kevin's timber claim, he pulls out all the stops and calls in favours from friends and family to get every last log off the mountainside before it's too late.

Mike's restoration of a 1966 Pontiac Parisienne connects him with Rust Valley's most oddball residents, as does a major swap meet, while his son Connor pushes him to help out a friend recovering from tragedy.

Kru finds a tape-recorded interview of a man who claims to have found Slumach's motherlode; out on the trail, Adam's old rival appears to be a step ahead in his search for the gold.

As the clock counts down on the end of Kevin's timber claim, he pulls out all the stops and calls in favours from friends and family to get every last log off the mountainside before it's too late.

Mike's restoration of a 1966 Pontiac Parisienne connects him with Rust Valley's most oddball residents, as does a major swap meet, while his son Connor pushes him to help out a friend recovering from tragedy.

A driver under the influence risks ending the family vacation; a trip behind the wheel of a borrowed truck raises suspicions.

An untruthful traveler is missing two bags; a favor may land an American in hot water; mail center officers uncover a narcotic scheme; a traveler's visa is revealing; a student learns a lesson; a producer's luggage could be showstopper.

Everyone is in an uproar when the emergency supply of light bulbs turns out to be an ice cream churn.

The 4077th is busy looking after wounded Korean civilians when a shiny 1948 Chevrolet pulls into camp.

Examining how far the U.S. goes to protect the commander in chief.

An inside look at the secret protocols, hidden history, and public scandals of America's highest office.

Throughout the world, there are ancient structures that defy explanation because even with today's technology they would be nearly impossible to duplicate.

Everyone is in an uproar when the emergency supply of light bulbs turns out to be an ice cream churn.

The 4077th is busy looking after wounded Korean civilians when a shiny 1948 Chevrolet pulls into camp.

Examining how far the U.S. goes to protect the commander in chief.

Hotspots of unexplained activity exist across America - specific regions where encounters with unknown creatures and supernatural forces seem to repeat again and again. From the famed Skinwalker Ranch in Utah, to the monstrous Mothman in Point Pleasant, West Virginia, to the Texas Dogman Triangle, the Bigfoot that calls the Klammath mountains of California home, and the numerous possession accounts that haunt Pittsburgh.

Throughout the world, there are ancient structures that defy explanation because even with today's technology they would be nearly impossible to duplicate.

Africa is the birthplace of humanity and remains one of the most mysterious continents on Earth. From lost cities buried beneath shifting sands, to abandoned ruins steeped in fascinating folklore, to the elusive tomb of history's most mighty queen, what secrets lie hidden throughout Africa's vast and unexplored ancient landscape?

When the world throws a bizarre problem your way, sometimes the solution is even more ridiculous; from a coastal cleanup plan that ends with an earth-shaking surprise, to a fugitive's fiery fix for an unexpected problem, these are the real-life moments when people thought way outside the box.

Examining how far the U.S. goes to protect the commander in chief.

Africa is the birthplace of humanity and remains one of the most mysterious continents on Earth. From lost cities buried beneath shifting sands, to abandoned ruins steeped in fascinating folklore, to the elusive tomb of history's most mighty queen, what secrets lie hidden throughout Africa's vast and unexplored ancient landscape?

When the world throws a bizarre problem your way, sometimes the solution is even more ridiculous; from a coastal cleanup plan that ends with an earth-shaking surprise, to a fugitive's fiery fix for an unexpected problem, these are the real-life moments when people thought way outside the box.

An inside look at the secret protocols, hidden history, and public scandals of America's highest office.

Throughout the world, there are ancient structures that defy explanation because even with today's technology they would be nearly impossible to duplicate.

Everyone is in an uproar when the emergency supply of light bulbs turns out to be an ice cream churn.

The 4077th is busy looking after wounded Korean civilians when a shiny 1948 Chevrolet pulls into camp.

A Japanese-Canadian survivor of World War II internment and his daughter discover their family's past; in another child-parent story, the son of Royal Canadian Airforce bomb aimer uncovers the prisoner-of-war experience his father never spoke about.

Discovering the roots of Black music in Canada, from the early black settlers of the Underground Railroad to the 1960s Caribbean migration, which introduced music which shaped all music within Canada today.

Examining the systemic barriers that Black artists face in the radio and music label industries and how this led to pivotal moments and historic protests that shaped the current landscape of the music industry today.

Explore the journey of Black women in Canadian music and their contributions and breakthroughs, which paved the way for artists despite limited industry support, racism and sexism, and their ongoing fight for recognition in the industry.

Explore the current state of Black music in Canada, the impact of losing Canada's first Black radio station FLOW 93.5, and what's next for Black Canadian artists with the power of the internet.

These are the chilling cases of law enforcement officers facing monsters no training could ever prepare them for; from the Beast of LBL to Bigfoot encounters in Oklahoma and Washington State, a shadow man in New Jersey and a bizarre half-man, half-goat in Colorado; first responders confront creatures that defy logic and warp reality.

These are the chilling accounts of people who claim they were hunted by mysterious cryptids; from a Dogman in Ohio, a group of Bigfoot in Washington state, a Skunk Ape in Florida and a mysterious Wendigo in Wisconsin, these cryptid predators stalk their human prey.

These are terrifying encounters with cryptids and the paranormal that didn't happen by accident... they began with one grave mistake that turned curiosity into a nightmare; from a terrifying shadow man in Indiana, to a real-life house haunting that inspired the movie "The Conjuring," a Bigfoot in Wyoming, a Skunk Ape in Florida and a demonic cryptid in California, these eyewitnesses made one critical mistake that changed everything.

These are the chilling encounters of people who trespassed into the domain of the unexplained... and paid the price; from Bigfoot in Washington State and Maryland, a Skunk Ape in Florida, a malevolent spirit in Washington state and a dogman in Kansas, witnesses cross a boundary into the unknown... and faces what awaits them on the other side.

From training grounds to war-torn battlefields, a growing number of soldiers report encounters not with enemy combatants, but with something beyond the known world; from a demonic entity in Bagdad Iraq, a haunted house in England, a Bigfoot in Washington State, a UFO over the skies of Kentucky and a Djinn on the Balad Air Base in Iraq, marines, soldiers and airmen come face to face with forces no training could ever prepare them for.

Hotspots of unexplained activity exist across America - specific regions where encounters with unknown creatures and supernatural forces seem to repeat again and again. From the famed Skinwalker Ranch in Utah, to the monstrous Mothman in Point Pleasant, West Virginia, to the Texas Dogman Triangle, the Bigfoot that calls the Klammath mountains of California home, and the numerous possession accounts that haunt Pittsburgh.

Our homes are meant to be sanctuaries - places where nothing can harm us. But sometimes, that sense of safety is shattered by something sinister. From "The Grassman" in rural Ohio, to the Spotsville Monster in Kentucky, to the haunted house of Amityville fame, the "Fouke Monster" in Indiana and a young girl's bizarre timeslip, these witnesses have their sense of security smashed by the unexplained.

Ancient accounts of monstrous creatures appear in cultures across the globe, today, sightings of Bigfoot, the Loch Ness Monster, and Reptilian beings continue, with their bizarre forms and behaviors eerily echoing ancient descriptions.

These are the chilling cases of law enforcement officers facing monsters no training could ever prepare them for; from the Beast of LBL to Bigfoot encounters in Oklahoma and Washington State, a shadow man in New Jersey and a bizarre half-man, half-goat in Colorado; first responders confront creatures that defy logic and warp reality.

These are the chilling accounts of people who claim they were hunted by mysterious cryptids; from a Dogman in Ohio, a group of Bigfoot in Washington state, a Skunk Ape in Florida and a mysterious Wendigo in Wisconsin, these cryptid predators stalk their human prey.

These are terrifying encounters with cryptids and the paranormal that didn't happen by accident... they began with one grave mistake that turned curiosity into a nightmare; from a terrifying shadow man in Indiana, to a real-life house haunting that inspired the movie "The Conjuring," a Bigfoot in Wyoming, a Skunk Ape in Florida and a demonic cryptid in California, these eyewitnesses made one critical mistake that changed everything.

These are the chilling encounters of people who trespassed into the domain of the unexplained... and paid the price; from Bigfoot in Washington State and Maryland, a Skunk Ape in Florida, a malevolent spirit in Washington state and a dogman in Kansas, witnesses cross a boundary into the unknown... and faces what awaits them on the other side.

From training grounds to war-torn battlefields, a growing number of soldiers report encounters not with enemy combatants, but with something beyond the known world; from a demonic entity in Bagdad Iraq, a haunted house in England, a Bigfoot in Washington State, a UFO over the skies of Kentucky and a Djinn on the Balad Air Base in Iraq, marines, soldiers and airmen come face to face with forces no training could ever prepare them for.

Hotspots of unexplained activity exist across America - specific regions where encounters with unknown creatures and supernatural forces seem to repeat again and again. From the famed Skinwalker Ranch in Utah, to the monstrous Mothman in Point Pleasant, West Virginia, to the Texas Dogman Triangle, the Bigfoot that calls the Klammath mountains of California home, and the numerous possession accounts that haunt Pittsburgh.

Our homes are meant to be sanctuaries - places where nothing can harm us. But sometimes, that sense of safety is shattered by something sinister. From "The Grassman" in rural Ohio, to the Spotsville Monster in Kentucky, to the haunted house of Amityville fame, the "Fouke Monster" in Indiana and a young girl's bizarre timeslip, these witnesses have their sense of security smashed by the unexplained.

Ancient accounts of monstrous creatures appear in cultures across the globe, today, sightings of Bigfoot, the Loch Ness Monster, and Reptilian beings continue, with their bizarre forms and behaviors eerily echoing ancient descriptions.

Mike and Jersey pick a little shop of wonder in the heart of Manhattan; Robbie chases down the holy grail of brass-era signs.

A visit to Avery's family farm leads to a discovery of unexpected treasures and puts Mike's veterinary skills to the test; A new member of the Rust Valley rat rod community needs help; Mike's '68 Chevelle SS comes back from the dead.

Mike restores a 1969 El Camino for his son Connor to race in a high-stakes Hit to Pass competition; Rust Bros' biggest rivalry gets nasty when they realize that not everyone is playing by the rules.

Tension grows among the team as they try to fill the trailer with pre-war vehicles across railway ghost towns.

A visit to Avery's family farm leads to a discovery of unexpected treasures and puts Mike's veterinary skills to the test; A new member of the Rust Valley rat rod community needs help; Mike's '68 Chevelle SS comes back from the dead.

Mike restores a 1969 El Camino for his son Connor to race in a high-stakes Hit to Pass competition; Rust Bros' biggest rivalry gets nasty when they realize that not everyone is playing by the rules.

From junkyard jalopies to long-lost classics, explore the rare wheels and automobilia lost to time that yield some good deals.

The world's most famous painting vanishes in a daring heist, sparking international outrage and a global manhunt; a master detective is called in, who zeroes in on a handful of suspects with the motive and means to pull off the theft; who stole the legendary Mona Lisa?

Looking at the many prison escapes of James Earl Ray, who assassinated Martin Luther King Jr., including his escape from Brushy Mountain State Prison, Tennessee.

A trip to the doctor is sure to cure any afflicted individual, but what happens when even the doctors are stunned by what they see?; from a family cursed with blue skin, to a girl allergic to the world's most unlimited resource and more.

One spark is all it takes; from the Hindenburg disaster to Krakatoa's violent volcanic eruption in 1883, these explosions are among history's deadliest.

From a Chinese curse that turns out to be real, to human remains in a Founding Father's basement, or even a mysterious island in Central Asia with enough pathogens to kill the entire global population several times over.

From junkyard jalopies to long-lost classics, explore the rare wheels and automobilia lost to time that yield some good deals.

The world's most famous painting vanishes in a daring heist, sparking international outrage and a global manhunt; a master detective is called in, who zeroes in on a handful of suspects with the motive and means to pull off the theft; who stole the legendary Mona Lisa?

One spark is all it takes; from the Hindenburg disaster to Krakatoa's violent volcanic eruption in 1883, these explosions are among history's deadliest.

A trip to the doctor is sure to cure any afflicted individual, but what happens when even the doctors are stunned by what they see?; from a family cursed with blue skin, to a girl allergic to the world's most unlimited resource and more.

From mad rulers like Caligula and Ivan the Terrible, to dictators like Mao Zedong and Saddam Hussein who killed by the millions, these are history's deadliest tyrants.

As events unfold around the team's dig operation in the Money Pit area, they make a potentially historic discovery in the swamp.

From junkyard jalopies to long-lost classics, explore the rare wheels and automobilia lost to time that yield some good deals.

From mad rulers like Caligula and Ivan the Terrible, to dictators like Mao Zedong and Saddam Hussein who killed by the millions, these are history's deadliest tyrants.

As events unfold around the team's dig operation in the Money Pit area, they make a potentially historic discovery in the swamp.

The world's most famous painting vanishes in a daring heist, sparking international outrage and a global manhunt; a master detective is called in, who zeroes in on a handful of suspects with the motive and means to pull off the theft; who stole the legendary Mona Lisa?

Looking at the many prison escapes of James Earl Ray, who assassinated Martin Luther King Jr., including his escape from Brushy Mountain State Prison, Tennessee.

From junkyard jalopies to long-lost classics, explore the rare wheels and automobilia lost to time that yield some good deals.

One spark is all it takes; from the Hindenburg disaster to Krakatoa's violent volcanic eruption in 1883, these explosions are among history's deadliest.

Faced with a desperate shortage of red cedar because his timber claim is still snowed in, Kevin takes to the high seas to salvage beached logs to serve his clients and pay a million dollar government penalty.

Mike struggles to finish a problematic 1966 Pontiac Parisienne, while stumbling into direct competition with a Rust Valley neighbour; Avery crashes into his new role as shop manager.

The search for Slumach's gold sends the team 300 kilometers away into the heart of mystery and murder; back in Pitt Lake, an unlikely prospector arrives with a shocking claim.

Faced with a desperate shortage of red cedar because his timber claim is still snowed in, Kevin takes to the high seas to salvage beached logs to serve his clients and pay a million dollar government penalty.

Mike struggles to finish a problematic 1966 Pontiac Parisienne, while stumbling into direct competition with a Rust Valley neighbour; Avery crashes into his new role as shop manager.

A pleasant American jumps the gun when he decides to go on a quick day-trip; a cheerful traveller's trip is in the bag; a baggage search turns cheesy; a traveller's odd luggage needs to go through the proper channels.

Two long boarders can't skate over their border exam; A traveler's phony story is exposed; a sailor's got more than pennies in his pockets; a rocker's lifestyle drums up some crucial questions.

Col. Potter learns new military money is being issued in hopes of confusing counterfeiters.

Nurse Cooper can't cope with the operating room; Radar gets a tattoo.

It's one of humanity's oldest nightmares-at the full moon, werewolves that once were men hunt human prey and then feast on their flesh. Stories of this terrifying transformation persist to this day; do real facts lie behind the enduring stories of werewolves?

The Greek pantheon, the Anunnaki of Sumer, and the Yellow Emperor of China were revered not just as deities but as powerful sky beings; could today's rulers still carry traces of extraterrestrial DNA, inherited from the so-called gods?

Counting down 10 intriguing symbols and codes found across the globe that might contain proof of otherworldly contact; from glyphs in the Peruvian desert, to spiral petroglyphs embedded with advanced math, and a language with an unexplained origin.

Col. Potter learns new military money is being issued in hopes of confusing counterfeiters.

Nurse Cooper can't cope with the operating room; Radar gets a tattoo.

It's one of humanity's oldest nightmares-at the full moon, werewolves that once were men hunt human prey and then feast on their flesh. Stories of this terrifying transformation persist to this day; do real facts lie behind the enduring stories of werewolves?

From mad rulers like Caligula and Ivan the Terrible, to dictators like Mao Zedong and Saddam Hussein who killed by the millions, these are history's deadliest tyrants.

As events unfold around the team's dig operation in the Money Pit area, they make a potentially historic discovery in the swamp.

It's one of the most legendary monsters said to be lurking in the vast open seas. With stories going back hundreds of years, this elusive creature has terrorized sailors and baffled scientists. Is this predator the stuff of legend... or could the Kraken be real?

Found along the California coast to New York's Hudson Valley and Northern England to Southern Chile, could these mysterious locations provide evidence of an extraterrestrial presence on Earth?

It's one of humanity's oldest nightmares-at the full moon, werewolves that once were men hunt human prey and then feast on their flesh. Stories of this terrifying transformation persist to this day; do real facts lie behind the enduring stories of werewolves?

It's one of the most legendary monsters said to be lurking in the vast open seas. With stories going back hundreds of years, this elusive creature has terrorized sailors and baffled scientists. Is this predator the stuff of legend... or could the Kraken be real?

Found along the California coast to New York's Hudson Valley and Northern England to Southern Chile, could these mysterious locations provide evidence of an extraterrestrial presence on Earth?

The Greek pantheon, the Anunnaki of Sumer, and the Yellow Emperor of China were revered not just as deities but as powerful sky beings; could today's rulers still carry traces of extraterrestrial DNA, inherited from the so-called gods?

Counting down 10 intriguing symbols and codes found across the globe that might contain proof of otherworldly contact; from glyphs in the Peruvian desert, to spiral petroglyphs embedded with advanced math, and a language with an unexplained origin.

Col. Potter learns new military money is being issued in hopes of confusing counterfeiters.

Nurse Cooper can't cope with the operating room; Radar gets a tattoo.

With his timber claim still snowed in, Kevin and crew push the limits of his small boat to try and salvage more logs on the Alberni Inlet; Sarah plans a surprise for Kevin's birthday.

A visit to Avery's family farm leads to a discovery of unexpected treasures and puts Mike's veterinary skills to the test; A new member of the Rust Valley rat rod community needs help; Mike's '68 Chevelle SS comes back from the dead.

The team in Bute Inlet continues to follow new leads in search of answers regarding a missing or murdered prospector, while David Muise inches closer to gold in Pitt Lake.

With his timber claim still snowed in, Kevin and crew push the limits of his small boat to try and salvage more logs on the Alberni Inlet; Sarah plans a surprise for Kevin's birthday.

A visit to Avery's family farm leads to a discovery of unexpected treasures and puts Mike's veterinary skills to the test; A new member of the Rust Valley rat rod community needs help; Mike's '68 Chevelle SS comes back from the dead.

Honesty is the best policy, even for ex-cons; A student gets the dish on declaring items properly.

Airport officers let the khat out of the bag; A repeat offender must prove he's learned his lesson.

Alarmed at the poor physical condition of his unit, Col. Potter decides to hold an M*A*S*H Olympics.

Winchester and Hot Lips get food poisoning from an imported can of pheasant; Hawkeye is reprimanded for fighting.

A long-lost keepsake tied to the world's most famous astronaut, a giant flying reptile that once ruled the skies, and a previously unknown planet orbiting two suns; some extraordinary discoveries remind us to keep looking up.

These are terrifying encounters with cryptids and the paranormal that didn't happen by accident... they began with one grave mistake that turned curiosity into a nightmare; from a terrifying shadow man in Indiana, to a real-life house haunting that inspired the movie "The Conjuring," a Bigfoot in Wyoming, a Skunk Ape in Florida and a demonic cryptid in California, these eyewitnesses made one critical mistake that changed everything.

Hotspots of unexplained activity exist across America - specific regions where encounters with unknown creatures and supernatural forces seem to repeat again and again. From the famed Skinwalker Ranch in Utah, to the monstrous Mothman in Point Pleasant, West Virginia, to the Texas Dogman Triangle, the Bigfoot that calls the Klammath mountains of California home, and the numerous possession accounts that haunt Pittsburgh.

Our homes are meant to be sanctuaries - places where nothing can harm us. But sometimes, that sense of safety is shattered by something sinister. From "The Grassman" in rural Ohio, to the Spotsville Monster in Kentucky, to the haunted house of Amityville fame, the "Fouke Monster" in Indiana and a young girl's bizarre timeslip, these witnesses have their sense of security smashed by the unexplained.

Alarmed at the poor physical condition of his unit, Col. Potter decides to hold an M*A*S*H Olympics.

Winchester and Hot Lips get food poisoning from an imported can of pheasant; Hawkeye is reprimanded for fighting.

A long-lost keepsake tied to the world's most famous astronaut, a giant flying reptile that once ruled the skies, and a previously unknown planet orbiting two suns; some extraordinary discoveries remind us to keep looking up.

It's one of the most legendary monsters said to be lurking in the vast open seas. With stories going back hundreds of years, this elusive creature has terrorized sailors and baffled scientists. Is this predator the stuff of legend... or could the Kraken be real?

Found along the California coast to New York's Hudson Valley and Northern England to Southern Chile, could these mysterious locations provide evidence of an extraterrestrial presence on Earth?

Scientists search for the truth behind reports of legendary monsters around the world.

Riddles don't just live in books, they're all around us. From a hollow nickel hiding Cold War secrets, to an ancient chess piece that reappears after centuries, and even a mysterious underwater circle carved by an unlikely artist...these puzzling finds remind us that history likes to keep us guessing.

A long-lost keepsake tied to the world's most famous astronaut, a giant flying reptile that once ruled the skies, and a previously unknown planet orbiting two suns; some extraordinary discoveries remind us to keep looking up.

Scientists search for the truth behind reports of legendary monsters around the world.

Riddles don't just live in books, they're all around us. From a hollow nickel hiding Cold War secrets, to an ancient chess piece that reappears after centuries, and even a mysterious underwater circle carved by an unlikely artist...these puzzling finds remind us that history likes to keep us guessing.

These are terrifying encounters with cryptids and the paranormal that didn't happen by accident... they began with one grave mistake that turned curiosity into a nightmare; from a terrifying shadow man in Indiana, to a real-life house haunting that inspired the movie "The Conjuring," a Bigfoot in Wyoming, a Skunk Ape in Florida and a demonic cryptid in California, these eyewitnesses made one critical mistake that changed everything.

Hotspots of unexplained activity exist across America - specific regions where encounters with unknown creatures and supernatural forces seem to repeat again and again. From the famed Skinwalker Ranch in Utah, to the monstrous Mothman in Point Pleasant, West Virginia, to the Texas Dogman Triangle, the Bigfoot that calls the Klammath mountains of California home, and the numerous possession accounts that haunt Pittsburgh.

Our homes are meant to be sanctuaries - places where nothing can harm us. But sometimes, that sense of safety is shattered by something sinister. From "The Grassman" in rural Ohio, to the Spotsville Monster in Kentucky, to the haunted house of Amityville fame, the "Fouke Monster" in Indiana and a young girl's bizarre timeslip, these witnesses have their sense of security smashed by the unexplained.

Alarmed at the poor physical condition of his unit, Col. Potter decides to hold an M*A*S*H Olympics.

Winchester and Hot Lips get food poisoning from an imported can of pheasant; Hawkeye is reprimanded for fighting.

As Kevin's log salvaging operation struggles, he pins his hopes on getting back up to his mountain timber claim; a long-time mill hand quits, leaving big shoes to fill.

Mike restores a 1969 El Camino for his son Connor to race in a high-stakes Hit to Pass competition; Rust Bros' biggest rivalry gets nasty when they realize that not everyone is playing by the rules.

A hidden 1940s map reveals new clues pointing to the motherlode; the team races season-ending weather through unexplored terrain to find an X that marks the spot where Slumach possibly found his gold.

As Kevin's log salvaging operation struggles, he pins his hopes on getting back up to his mountain timber claim; a long-time mill hand quits, leaving big shoes to fill.

Mike restores a 1969 El Camino for his son Connor to race in a high-stakes Hit to Pass competition; Rust Bros' biggest rivalry gets nasty when they realize that not everyone is playing by the rules.

A traveler has suitcases full of surprises; A Canadian couple returns home with a man-eating beast; two Americans tow their friend's boat to Alaska.

The dogs are brought in to assist officers; A traveler goes gaga at Vancouver International Airport.

Hawkeye and Margaret go to give a demonstration at the 8063rd.

Hawkeye and Hot Lips come under heavy artillery fire in enemy territory, with Hawkeye receiving a leg wound.

From junkyard jalopies to long-lost classics, explore the rare wheels and automobilia lost to time that yield some good deals.

Four smiths must combine two of the most difficult techniques in the forge to make a blade: Damascus and Go Mai; then, after an intense round of testing, two competitors head home to build an intricate 16th century side sword.

Four smiths must sift through a pile of junk in order to make a signature damascus blade; after a couple of rounds, two smiths head back to their home forge to recreate a Broadsword featuring a snake-shaped grind.

Four smiths put their design skills to the test when they are tasked with pimping out a machete; then, the two smiths with the most blinged out blades head back to their home forges to build history's original pimped out weapon.

Hawkeye and Margaret go to give a demonstration at the 8063rd.

Hawkeye and Hot Lips come under heavy artillery fire in enemy territory, with Hawkeye receiving a leg wound.

From junkyard jalopies to long-lost classics, explore the rare wheels and automobilia lost to time that yield some good deals.

Riddles don't just live in books, they're all around us. From a hollow nickel hiding Cold War secrets, to an ancient chess piece that reappears after centuries, and even a mysterious underwater circle carved by an unlikely artist...these puzzling finds remind us that history likes to keep us guessing.

From mad rulers like Caligula and Ivan the Terrible, to dictators like Mao Zedong and Saddam Hussein who killed by the millions, these are history's deadliest tyrants.

Mike and Jersey are gaga for a Mississippi historian's Southern-centric collection. And then uncover a rare jukebox in a sprawling historic home in Missouri.

Unveiling notorious artifacts from crime history that made a killing on the auction block.

From junkyard jalopies to long-lost classics, explore the rare wheels and automobilia lost to time that yield some good deals.

Mike and Jersey are gaga for a Mississippi historian's Southern-centric collection. And then uncover a rare jukebox in a sprawling historic home in Missouri.

Unveiling notorious artifacts from crime history that made a killing on the auction block.

Four smiths must combine two of the most difficult techniques in the forge to make a blade: Damascus and Go Mai; then, after an intense round of testing, two competitors head home to build an intricate 16th century side sword.

Four smiths must sift through a pile of junk in order to make a signature damascus blade; after a couple of rounds, two smiths head back to their home forge to recreate a Broadsword featuring a snake-shaped grind.

Four smiths put their design skills to the test when they are tasked with pimping out a machete; then, the two smiths with the most blinged out blades head back to their home forges to build history's original pimped out weapon.

Hawkeye and Margaret go to give a demonstration at the 8063rd.

Hawkeye and Hot Lips come under heavy artillery fire in enemy territory, with Hawkeye receiving a leg wound.

Finally back up on the mountain, Kevin hauls as much red cedar as he can; Sarah helps with a massive reforestation effort and gets Kevin to create a custom wooden table for a client in California.

Mike refuses to sell an old clunker to a pair of serious buyers and instead takes on the challenging restoration of a 1967 Mercury Cougar with a tragic past; Avery goes head to head with Mike at the local swap meet.

It's up to Adam to push forward and guide the team through the uncharted terrain of Corbold Canyon.

Finally back up on the mountain, Kevin hauls as much red cedar as he can; Sarah helps with a massive reforestation effort and gets Kevin to create a custom wooden table for a client in California.

Mike refuses to sell an old clunker to a pair of serious buyers and instead takes on the challenging restoration of a 1967 Mercury Cougar with a tragic past; Avery goes head to head with Mike at the local swap meet.

Officers question a nervous traveler; a trampoline installer hopes to avoid the bounce around; undeclared dogs from Hungary.

A chef with limited funds and no return ticket; serial numbers aren't piecing together in a gun shipment; a travel agent's last-minute Caribbean booking raises red flags; a boat owner fails to report to CBSA.

B.J. borrows $200 from Charles to send to his wife, only to have Charles take advantage of him in various ways.

Charles' French horn practicing causes Hawkeye and B.J. to go on a bath strike.

When a seller brings in a collection of model F1 cars, Rick has to make a decision; Rick and Corey check out a Taylor Swift signed guitar; but is it the guitar of their wildest dreams or do they need to calm down?

Italy suffers one of the worst engineering disasters when the Morandi bridge suddenly collapses; examining what failures of a Brazilian dam, a Manilla high rise, and a building in Jerusalem reveal about the collapse.

A DC-10 airplane explodes mid-flight and the quick-thinking pilot crash-lands, saving 184 passengers; the connection between the infamous Concorde crash, a fatal British skyscraper fire, and a North Dakota train derailment.

Clues from other disasters are used to solve how the I-35 bridge in the heart of Minneapolis collapsed without warning at the peak of rush hour traffic.

B.J. borrows $200 from Charles to send to his wife, only to have Charles take advantage of him in various ways.

Charles' French horn practicing causes Hawkeye and B.J. to go on a bath strike.

When a seller brings in a collection of model F1 cars, Rick has to make a decision; Rick and Corey check out a Taylor Swift signed guitar; but is it the guitar of their wildest dreams or do they need to calm down?