By the late 1940s, UFO sightings and reports of downed flying saucers are so rampant, the U.S. government forms a top-secret group to investigate; reports of an alleged alien abduction stoke nationwide fear.

Jack Daniel's has been making their blend since 1866, but the story of its invention is full of unexpected turns; like the secrets behind their unique recipe, how they barely survived prohibition and how Hollywood ran away with the brand's image.

Hawkeye desperately tries to contact his hospitalized father in Maine while the rest of the camp is preoccupied with a bowling match against a group of Marines.

Col. Potter decides to paint a picture of the 4077th crew for Mildred's birthday.

American cars get a makeover when an engineer creates the first sports car. And Detroit's Big 3 begin transforming their functional, practical cars into American sports cars, hot rods and muscle cars in an arms race to make the fastest, most powerful cars the country has ever seen.

From World War II bombs pulled from the sea and Nazi bunkers buried in sand, to chemical weapons hidden beneath Washington, D.C., and a supernova caught on camera - these explosive discoveries prove that history's blasts from the past can still shake our world today.

People has heard the tales of wars fought with groundbreaking weaponry; learning about everything else in between; from missiles manned by pigeons to an incendiary device made to look like one of America's favorite pastimes.

Three smiths return for a chance at becoming a two-time winner and having their name forged in history.

Mike and Jersey sift through a tidal wave of early technology; Robbie is determined to rev up a one-of-a-kind car with no owner's manual.

American cars get a makeover when an engineer creates the first sports car. And Detroit's Big 3 begin transforming their functional, practical cars into American sports cars, hot rods and muscle cars in an arms race to make the fastest, most powerful cars the country has ever seen.

Three smiths return for a chance at becoming a two-time winner and having their name forged in history.

Mike and Jersey sift through a tidal wave of early technology; Robbie is determined to rev up a one-of-a-kind car with no owner's manual.

A look behind the brand's most iconic campaigns and how taking a crazy chance on a rookie turned Nike into the $33 billion empire it is today.

Since its founding in 1962, Walmart has grown from a humble discount store in rural Arkansas to the largest company in the world; with over 11,000 locations, they employ more people than the U.S. armed forces.

Dave Thomas opens a hamburger chain, and his innovations, including a simplified menu, the perfect drive-thru system, and the reasoning behind the square hamburger, turn Wendy's into a success, but the company falters when they're victim of a hoax.

Tracing its roots back to the 18th-century Sicilian mafia, the American mob created a $90 billion a year criminal enterprise, and the story behind the mob's rise is stranger than fiction; the mob helped create one of New York's most iconic gay bars.

By the late 1940s, UFO sightings and reports of downed flying saucers are so rampant, the U.S. government forms a top-secret group to investigate; reports of an alleged alien abduction stoke nationwide fear.

Jack Daniel's has been making their blend since 1866, but the story of its invention is full of unexpected turns; like the secrets behind their unique recipe, how they barely survived prohibition and how Hollywood ran away with the brand's image.

Hawkeye desperately tries to contact his hospitalized father in Maine while the rest of the camp is preoccupied with a bowling match against a group of Marines.

Col. Potter decides to paint a picture of the 4077th crew for Mildred's birthday.

Dale has to confront his past in a desperate attempt to keep his failing business alive; Dave has a meltdown stranded on a back road with a heavy load; Craig gets greasy on a biodiesel run with his girlfriend's truck.

Mike and Avery try to get an auctioneer to help them downsize their collections, but Avery scares him off; frame issues leave Mike's restoration of a Diamond T truck dead in the water.

For many years Hogan's Alley was the heart of Vancouver's Black community; in the 1850s James Douglas invited Blacks to settle Vancouver island in an effort to stave off American annexation.

Dale has to confront his past in a desperate attempt to keep his failing business alive; Dave has a meltdown stranded on a back road with a heavy load; Craig gets greasy on a biodiesel run with his girlfriend's truck.

Mike and Avery try to get an auctioneer to help them downsize their collections, but Avery scares him off; frame issues leave Mike's restoration of a Diamond T truck dead in the water.

A currency dog sniffs out thousands in undeclared cash; an aspiring actor can't keep track of the plot; officers arrest a wanted burglar.

An American's trip to Alaska heads south; officers suspect a convicted drug dealer is taking his business north; a ship containing weapons is searched.

While Hawkeye is serving as paymaster, a goat eats $22,000 in cash.

Dreaded Col. Bucholtz comes to inspect the nursing staff.

Todd returns to face an old nemesis that once defeated him and destroyed his truck, Asheweig Road; Lisa tackles the longest run of the season so far, but disaster strikes when a fire breaks out beneath her truck.

Attica, a 90-year-old maximum-security prison in upstate New York, has a legacy of violence and inmate abuse stretching back decades; stories include the serial killer Son of Sam who gets his throat slashed, a successful escape, and a riot.

In the heart of the Confederacy, Andersonville was the last place a Union soldier wanted to end up during the Civil War; only opened for 14 months, becoming the final resting place for over 12,000 men.

France ships prisoners to Devil's Island located off French Guiana so they would vanish from the public eye; Alfred Dreyfus, is a military officer is convicted of crimes he didn't commit.

A maximum-security prison on the banks of the Hudson, just 30 miles north of New York City, gives rise to the saying, being sent up the river.

Located in the heart of London on the River Thames, the Tower of London's reputation for torture and beheadings fuels nightmares; originally built as a fortress by William the Conqueror in 1078, it becomes a prison in 1101.

Within the first forty years of operation, the Soviet Gulag system imprisons at least 18 million people and kills more than one and a half million; three tales of the fight for survival.

While Hawkeye is serving as paymaster, a goat eats $22,000 in cash.

Dreaded Col. Bucholtz comes to inspect the nursing staff.

Todd returns to face an old nemesis that once defeated him and destroyed his truck, Asheweig Road; Lisa tackles the longest run of the season so far, but disaster strikes when a fire breaks out beneath her truck.

Three smiths return for a chance at becoming a two-time winner and having their name forged in history.

From a bat swung by one of baseball's boldest pioneers, to an iconic painting hidden behind a false wall, and even a relic tied to our nation's first president, these astonishing finds prove that America's greatest treasures can turn up in the most unlikely places.

Lauro embarks on a new solo adventure with his dog team across the unforgiving Arctic wilderness; Bret and Ivy run into trouble when their traps vanish under several feet of solid ice; Chance's bold push into new trapping territory pays off big, leaving him and Soraya with a haul of marten to skin; Jake chases down the giant tom lion that gave him the slip a week earlier; Paul taps the raw power of pure skunk essence to concoct his most potent trapping lure yet.

Todd hauls a massive machine as he fights his way home in a final showdown with his nemesis, the infamous Asheweig Road; Scooter calls in a local road crew after losing a battle with an angry hill on his return trip along the goat trail.

From a bat swung by one of baseball's boldest pioneers, to an iconic painting hidden behind a false wall, and even a relic tied to our nation's first president, these astonishing finds prove that America's greatest treasures can turn up in the most unlikely places.

Lauro embarks on a new solo adventure with his dog team across the unforgiving Arctic wilderness; Bret and Ivy run into trouble when their traps vanish under several feet of solid ice; Chance's bold push into new trapping territory pays off big, leaving him and Soraya with a haul of marten to skin; Jake chases down the giant tom lion that gave him the slip a week earlier; Paul taps the raw power of pure skunk essence to concoct his most potent trapping lure yet.

Todd hauls a massive machine as he fights his way home in a final showdown with his nemesis, the infamous Asheweig Road; Scooter calls in a local road crew after losing a battle with an angry hill on his return trip along the goat trail.

Attica, a 90-year-old maximum-security prison in upstate New York, has a legacy of violence and inmate abuse stretching back decades; stories include the serial killer Son of Sam who gets his throat slashed, a successful escape, and a riot.

In the heart of the Confederacy, Andersonville was the last place a Union soldier wanted to end up during the Civil War; only opened for 14 months, becoming the final resting place for over 12,000 men.

France ships prisoners to Devil's Island located off French Guiana so they would vanish from the public eye; Alfred Dreyfus, is a military officer is convicted of crimes he didn't commit.

A maximum-security prison on the banks of the Hudson, just 30 miles north of New York City, gives rise to the saying, being sent up the river.

Located in the heart of London on the River Thames, the Tower of London's reputation for torture and beheadings fuels nightmares; originally built as a fortress by William the Conqueror in 1078, it becomes a prison in 1101.

Within the first forty years of operation, the Soviet Gulag system imprisons at least 18 million people and kills more than one and a half million; three tales of the fight for survival.

While Hawkeye is serving as paymaster, a goat eats $22,000 in cash.

Dreaded Col. Bucholtz comes to inspect the nursing staff.

Dave and Tristan fight an antique wood boiler and each other leading to a showdown between father and son; Craig gets muddy on a radio antenna delivery job that leaves its mark; Dale goes on a family trip to help cut a deal for his dad.

With his car auction fast approaching, Mike strategizes how to draw a bigger crowd; James West takes on his most challenging build yet - turning a 1955 Cadillac into a 70s-inspired Street.

Tucked between Griffintown and St. Henri in Montreal's Sud Ouest is Little Burgundy, home to a Black population led by Black men who worked in Canada's railway industry as sleeping car porters.

Dave and Tristan fight an antique wood boiler and each other leading to a showdown between father and son; Craig gets muddy on a radio antenna delivery job that leaves its mark; Dale goes on a family trip to help cut a deal for his dad.

With his car auction fast approaching, Mike strategizes how to draw a bigger crowd; James West takes on his most challenging build yet - turning a 1955 Cadillac into a 70s-inspired Street.

Officers stop a father and son packing loads of ammo, but can't find the gun. Meanwhile, the Vessel Search Unit find a suspect sailor on a US tug.

A young man's lies could keep him from his fiancee, while the discovery of a gold bar and lots of cash spell trouble for another traveller.

Tricks seem to overrule treats on Halloween when a rowdy group of Marines ends up as patients. Guest starring George Wendt and Andrew Dice Clay.

Maj. Reddish tries to bribe an injured North Korean pilot to defect; Charles falls in love with a Red Cross worker.

This episode explores the strangest and most ghastly gigs ever.

How people develop extraordinary abilities, like remote viewing or enduring extreme temperatures by using one's mind.

Exploring if dark, powerful energies permeate the human world, or if it is all just myth and superstition.

A look at the visions of mystics, prophets and clairvoyants throughout history, what their prophecies reveal and predictions for the future.

Tricks seem to overrule treats on Halloween when a rowdy group of Marines ends up as patients. Guest starring George Wendt and Andrew Dice Clay.

Maj. Reddish tries to bribe an injured North Korean pilot to defect; Charles falls in love with a Red Cross worker.

This episode explores the strangest and most ghastly gigs ever.

Is a mysterious object moving through the sky a UFO disguised as a cloud? Is Lake Superior home to a massive water creature? Is a ghost haunting a young couple's bedroom? Who sent the police an anonymous letter with a terrifying bigfoot photo.

Throughout history, there have been men of science who pushed the boundaries of experimentation to the edge of madness. They were renegades known for bizarre and often unethical experiments involving human-animal hybrids, mind control devices, and even unimaginable torture. What led these mad scientists down a strange, dark path in their pursuit of knowledge?

Beneath our feet lie hidden ancient tunnels, sacred caves and shadowy passages into a world of darkness shaped by nature, carved by man and steeped in myth; seeing if the underground realms are mere remnants of the past or they guard secrets.

History is full of legendary missions, but some are so bizarre, they sound like fiction; from a covert op involving toilet paper, to a war sparked by a single tree, to a pilot who turned the skies into a candy drop zone.

While drilling in the Mesa on Skinwalker Ranch, the team makes a discovery that could literally be out of this world.

Beneath our feet lie hidden ancient tunnels, sacred caves and shadowy passages into a world of darkness shaped by nature, carved by man and steeped in myth; seeing if the underground realms are mere remnants of the past or they guard secrets.

History is full of legendary missions, but some are so bizarre, they sound like fiction; from a covert op involving toilet paper, to a war sparked by a single tree, to a pilot who turned the skies into a candy drop zone.

How people develop extraordinary abilities, like remote viewing or enduring extreme temperatures by using one's mind.

Exploring if dark, powerful energies permeate the human world, or if it is all just myth and superstition.

A look at the visions of mystics, prophets and clairvoyants throughout history, what their prophecies reveal and predictions for the future.

Tricks seem to overrule treats on Halloween when a rowdy group of Marines ends up as patients. Guest starring George Wendt and Andrew Dice Clay.

Maj. Reddish tries to bribe an injured North Korean pilot to defect; Charles falls in love with a Red Cross worker.

Adam and Kru navigate a vertical mud bog to access a remote lake perched 1000 feet high in the Pitt; Taylor and Don search the Vancouver Police archives for clues as they investigate the man responsible for Slumach's arrest and execution.

Adam, Kru, Don and Kevin follow reports of missing prospector Volcanic Brown to his camp; Adam battles winter weather and his better judgement to find Brown's body; Taylor and cousin Rain Pierre uncover archival evidence linking Slumach's arrest.

The Dawson City Fire Department struggles in the absence of their chief; Ray is stuck in deep snow on a remote backroad and Colin races against an incoming storm to keep the travelling public safe.

Adam and Kru navigate a vertical mud bog to access a remote lake perched 1000 feet high in the Pitt; Taylor and Don search the Vancouver Police archives for clues as they investigate the man responsible for Slumach's arrest and execution.

Adam, Kru, Don and Kevin follow reports of missing prospector Volcanic Brown to his camp; Adam battles winter weather and his better judgement to find Brown's body; Taylor and cousin Rain Pierre uncover archival evidence linking Slumach's arrest.

Levi Strauss partners with a tailor who makes a groundbreaking discovery during the Gold Rush; sparking a blue jean boom and rivalry between two companies that spans generations and builds a billion-dollar industry.

Pablo Escobar, the narco-trafficker who single-handedly supplied most of America's cocaine in the 1980s, had billions of dollars in cash; by the time he was gunned down in 1993, it's believed he was worth over $50 billion in today's money.

John Dillinger's life consists of brazen bank robberies across the country, but his death remains shrouded in mystery; what really happened to John Dillinger?

Notorious mobster Bugsy Siegel is gunned down in his Beverly Hills living room; Siegel's killing becomes front page news; no arrest is ever made.

On November 22, 1963, President John F Kennedy is assassinated, shaking the nation to its core; while an initial suspect is captured, many believe there's more to the story; investigators and amateur sleuths alike have been searching for answers.

The final months of John F. Kennedy's life and the legacy he left behind.

Five years after John F. Kennedy is killed by gunshot, his brother Robert meets the same fate; an assassin's bullet again changes the course of history, and the latest clues in the case are riddled with inconsistencies.

Pablo Escobar, the narco-trafficker who single-handedly supplied most of America's cocaine in the 1980s, had billions of dollars in cash; by the time he was gunned down in 1993, it's believed he was worth over $50 billion in today's money.

John Dillinger's life consists of brazen bank robberies across the country, but his death remains shrouded in mystery; what really happened to John Dillinger?

Notorious mobster Bugsy Siegel is gunned down in his Beverly Hills living room; Siegel's killing becomes front page news; no arrest is ever made.

After a prison transport van overturns, Hondo and the team hunt down three female fugitives, including a serial killer on the verge of a rampage; with Annie's return to work, Deacon struggles to maintain a work-life balance.

After the shooting of a member of 20-Squad, Hondo and the team launch a citywide manhunt for the robbery crew responsible; Deacon's plans for his future hit a snag; Powell and Alfaro clash over a tricky issue.

When the SWAT team faces off with a family of doomsday preppers, Deacon finds himself at the center of the storm; Tan clashes with a reporter covering the situation; Powell grapples with meeting the child she gave up for adoption eighteen years ago.

After a prison transport van overturns, Hondo and the team hunt down three female fugitives, including a serial killer on the verge of a rampage; with Annie's return to work, Deacon struggles to maintain a work-life balance.

After the shooting of a member of 20-Squad, Hondo and the team launch a citywide manhunt for the robbery crew responsible; Deacon's plans for his future hit a snag; Powell and Alfaro clash over a tricky issue.

When the SWAT team faces off with a family of doomsday preppers, Deacon finds himself at the center of the storm; Tan clashes with a reporter covering the situation; Powell grapples with meeting the child she gave up for adoption eighteen years ago.

On November 22, 1963, President John F Kennedy is assassinated, shaking the nation to its core; while an initial suspect is captured, many believe there's more to the story; investigators and amateur sleuths alike have been searching for answers.

Five years after John F. Kennedy is killed by gunshot, his brother Robert meets the same fate; an assassin's bullet again changes the course of history, and the latest clues in the case are riddled with inconsistencies.

Mike stumbles upon a once-in-a-lifetime camera collection in upstate New York; Robbie goes hog wild for a massive stash of junior dream cars.

Peter builds a Gold Rush era shaft house; Joel struggles to complete a huge Pennsylvania mansion.

Bryan Jr. builds a tree fort; Peter works on a mountainside ski cabin; Beat and Andre build a Motocross viewing stage.

Big Donny's senior drivers battle each other in the far north, while his most junior races to a hydro plant that can't restore power without her; when a competitor ups his game, Donny discovers his hotshotting empire is under attack.

Big Donny dispatches his entire crew to a challenging roadside crash recovery, but things go sideways when Craig is missing-in-action on the job. Angela struggles when she's sidelined after her truck breaks down on a hotshot mission.

Todd hauls a massive machine as he fights his way home in a final showdown with his nemesis, the infamous Asheweig Road; Scooter calls in a local road crew after losing a battle with an angry hill on his return trip along the goat trail.

Beneath our feet lie hidden ancient tunnels, sacred caves and shadowy passages into a world of darkness shaped by nature, carved by man and steeped in myth; seeing if the underground realms are mere remnants of the past or they guard secrets.

From World War II bombs pulled from the sea and Nazi bunkers buried in sand, to chemical weapons hidden beneath Washington, D.C., and a supernova caught on camera - these explosive discoveries prove that history's blasts from the past can still shake our world today.

History is full of legendary missions, but some are so bizarre, they sound like fiction; from a covert op involving toilet paper, to a war sparked by a single tree, to a pilot who turned the skies into a candy drop zone.

After a prison transport van overturns, Hondo and the team hunt down three female fugitives, including a serial killer on the verge of a rampage; with Annie's return to work, Deacon struggles to maintain a work-life balance.

After the shooting of a member of 20-Squad, Hondo and the team launch a citywide manhunt for the robbery crew responsible; Deacon's plans for his future hit a snag; Powell and Alfaro clash over a tricky issue.

When the SWAT team faces off with a family of doomsday preppers, Deacon finds himself at the center of the storm; Tan clashes with a reporter covering the situation; Powell grapples with meeting the child she gave up for adoption eighteen years ago.

A notorious tragedy leads to one of the darkest chapters in early American history; in 1692, fear rips through the small town of Salem, Massachusetts; accusations fly and many people are put to death.

Beneath our feet lie hidden ancient tunnels, sacred caves and shadowy passages into a world of darkness shaped by nature, carved by man and steeped in myth; seeing if the underground realms are mere remnants of the past or they guard secrets.

From World War II bombs pulled from the sea and Nazi bunkers buried in sand, to chemical weapons hidden beneath Washington, D.C., and a supernova caught on camera - these explosive discoveries prove that history's blasts from the past can still shake our world today.

History is full of legendary missions, but some are so bizarre, they sound like fiction; from a covert op involving toilet paper, to a war sparked by a single tree, to a pilot who turned the skies into a candy drop zone.

After lab tests reveal stunning clues about the ceramic material, the team faces a hard decision about their investigation of the Mesa.

New discoveries in the Swamp and Money Pit area lead to a potentially history-changing revelation for the team.

Matty Blake meets with scientists Erik Bard and Dr. Travis Taylor for the inside scoop on the mysterious ceramic material that was extracted from the Mesa.

From World War II bombs pulled from the sea and Nazi bunkers buried in sand, to chemical weapons hidden beneath Washington, D.C., and a supernova caught on camera - these explosive discoveries prove that history's blasts from the past can still shake our world today.

After lab tests reveal stunning clues about the ceramic material, the team faces a hard decision about their investigation of the Mesa.

Matty Blake meets with scientists Erik Bard and Dr. Travis Taylor for the inside scoop on the mysterious ceramic material that was extracted from the Mesa.

New discoveries in the Swamp and Money Pit area lead to a potentially history-changing revelation for the team.

History is full of legendary missions, but some are so bizarre, they sound like fiction; from a covert op involving toilet paper, to a war sparked by a single tree, to a pilot who turned the skies into a candy drop zone.

Beneath our feet lie hidden ancient tunnels, sacred caves and shadowy passages into a world of darkness shaped by nature, carved by man and steeped in myth; seeing if the underground realms are mere remnants of the past or they guard secrets.

A notorious tragedy leads to one of the darkest chapters in early American history; in 1692, fear rips through the small town of Salem, Massachusetts; accusations fly and many people are put to death.

Dale and his sister retrieve a crashed ATV; Dave slings propane across a river.

A rare Diamond T truck build has Mike and his crew scrambling to keep up with their client's demands; Avery battles a hornet's nest, his mother and his own impending sense of doom as auction day arrives.

Taylor unearths new testimony from a witness to Slumach's execution; a deathbed letter written by a man who claims to have found Slumach's gold sends Adam and Kru on a dangerous glacial trek in search of the fabled mother lode.

Dale and his sister retrieve a crashed ATV; Dave slings propane across a river.

A rare Diamond T truck build has Mike and his crew scrambling to keep up with their client's demands; Avery battles a hornet's nest, his mother and his own impending sense of doom as auction day arrives.

Suspicions about a convicted smuggler uncover a scam; questions are raised when officers stumble upon a suitcase full of meat.

Some engineering students carry out an unusual experiment; officers find a construction worker's story has no foundations.

B.J. attempts to pull off the ultimate practical joke on Hawkeye.

A nurse who was close to Hawkeye is killed; Klinger tries to talk Charles into backing a business venture.

Nicola Tesla had revolutionary ideas, but in the hands of the wrong people, those ideas could be used for evil purposes; when Tesla died, he allegedly had 80 trunks of papers full of ideas, but only 60 have been seen again.

Earth's deep, uncharted waters have long been a source of wonder; from legends of aquatic cities ruled by gods and creatures to frequent UFO sightings, considering if these might point to an otherworldly presence lurking in Earth watery depths.

Considered by many to be the greatest civilization in the history of the Americas, the Maya thrived for more than 2,000 years; today new evidence is being discovered that completely upends our understanding of this ancient culture, and might provide evidence that the Maya came in contact with extraterrestrial visitors.

B.J. attempts to pull off the ultimate practical joke on Hawkeye.

A nurse who was close to Hawkeye is killed; Klinger tries to talk Charles into backing a business venture.

Nicola Tesla had revolutionary ideas, but in the hands of the wrong people, those ideas could be used for evil purposes; when Tesla died, he allegedly had 80 trunks of papers full of ideas, but only 60 have been seen again.

After lab tests reveal stunning clues about the ceramic material, the team faces a hard decision about their investigation of the Mesa.

New discoveries in the Swamp and Money Pit area lead to a potentially history-changing revelation for the team.

In a world without humans, the deserts once tamed rise to reclaim great triumphs: from Las Vegas to Dubai's Burj Khalifa; as sand, salt, and sun dismantle cities, the wastelands quietly take back the ground borrowed.

"Ancient Aliens" is counting down ten mysterious mountains that are notorious for otherworldly phenomena; from a summit in Sri Lanka that is said to be a portal to other worlds and a volcano in Washington that was at the center of a UFO sighting.

Nicola Tesla had revolutionary ideas, but in the hands of the wrong people, those ideas could be used for evil purposes; when Tesla died, he allegedly had 80 trunks of papers full of ideas, but only 60 have been seen again.

In a world without humans, the deserts once tamed rise to reclaim great triumphs: from Las Vegas to Dubai's Burj Khalifa; as sand, salt, and sun dismantle cities, the wastelands quietly take back the ground borrowed.

"Ancient Aliens" is counting down ten mysterious mountains that are notorious for otherworldly phenomena; from a summit in Sri Lanka that is said to be a portal to other worlds and a volcano in Washington that was at the center of a UFO sighting.

Earth's deep, uncharted waters have long been a source of wonder; from legends of aquatic cities ruled by gods and creatures to frequent UFO sightings, considering if these might point to an otherworldly presence lurking in Earth watery depths.

Considered by many to be the greatest civilization in the history of the Americas, the Maya thrived for more than 2,000 years; today new evidence is being discovered that completely upends our understanding of this ancient culture, and might provide evidence that the Maya came in contact with extraterrestrial visitors.

B.J. attempts to pull off the ultimate practical joke on Hawkeye.

A nurse who was close to Hawkeye is killed; Klinger tries to talk Charles into backing a business venture.

Big Donny keeps a watchful eye on Junior during a peat bog recovery that threatens to swallow up their fleet of tow trucks; Dave brings Angela on a tough job that could finally get him into the black.

The crew at a new restoration shop takes on their first jobs restoring vintage cars, including a 1966 Lincoln Ragtop convertible and a 1970 Dodge Dart Swinger.

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.

Big Donny keeps a watchful eye on Junior during a peat bog recovery that threatens to swallow up their fleet of tow trucks; Dave brings Angela on a tough job that could finally get him into the black.

The crew at a new restoration shop takes on their first jobs restoring vintage cars, including a 1966 Lincoln Ragtop convertible and a 1970 Dodge Dart Swinger.

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.

Hawkeye and Charles set out to test the crew's gullibility when they announce that Marilyn Monroe is due to arrive.

Mildred writes a letter to Hawkeye; and a sergeant tries to kill the captive sniper responsible for his lieutenant's injuries.

From soaring skyscrapers like One World Trade Center to impenetrable vaults like Fort Knox, humanity's strongest structures were engineered to defy disaster; but in a world without people, even the mightiest begin to crack.

From a grand basilica in Vatican City and the towering monuments of Ancient Egypt to a Biblical tower and a lost city in the clouds of Peru, we uncover their construction, purpose and the enduring mysteries they hold.

Ancient cultures around the world have aroused fascination and provoked fear with curses and objects used to conjure them like rings, tablets and stones.

Archaeologists have spent centuries searching for the legendary locations of holy births, deaths, miracles and wars; we explore the stories behind these lost sacred sites and the incredible endeavors to find them.

Hawkeye and Charles set out to test the crew's gullibility when they announce that Marilyn Monroe is due to arrive.

Mildred writes a letter to Hawkeye; and a sergeant tries to kill the captive sniper responsible for his lieutenant's injuries.

From soaring skyscrapers like One World Trade Center to impenetrable vaults like Fort Knox, humanity's strongest structures were engineered to defy disaster; but in a world without people, even the mightiest begin to crack.

In a world without humans, the deserts once tamed rise to reclaim great triumphs: from Las Vegas to Dubai's Burj Khalifa; as sand, salt, and sun dismantle cities, the wastelands quietly take back the ground borrowed.

"Ancient Aliens" is counting down ten mysterious mountains that are notorious for otherworldly phenomena; from a summit in Sri Lanka that is said to be a portal to other worlds and a volcano in Washington that was at the center of a UFO sighting.

What set off a historic wave of UFO sightings in Belgium? Is famous footage of an adult bigfoot carrying a baby bigfoot the real deal? Does the discovery of a massive mummified finger prove giants once roamed the earth? What strange force is causing a land mass to rise up? Tony Harris and his team of experts examine the clues and make a determination about the validity of what we're seeing.

Some secrets refuse to stay buried; whether it's illicit cargo in a frozen lake, a stolen masterpiece worth millions, or a brothel hidden in the shadow of the Capitol-the truth always resurfaces.

From soaring skyscrapers like One World Trade Center to impenetrable vaults like Fort Knox, humanity's strongest structures were engineered to defy disaster; but in a world without people, even the mightiest begin to crack.

What set off a historic wave of UFO sightings in Belgium? Is famous footage of an adult bigfoot carrying a baby bigfoot the real deal? Does the discovery of a massive mummified finger prove giants once roamed the earth? What strange force is causing a land mass to rise up? Tony Harris and his team of experts examine the clues and make a determination about the validity of what we're seeing.

Some secrets refuse to stay buried; whether it's illicit cargo in a frozen lake, a stolen masterpiece worth millions, or a brothel hidden in the shadow of the Capitol-the truth always resurfaces.

Archaeologists have spent centuries searching for the legendary locations of holy births, deaths, miracles and wars; we explore the stories behind these lost sacred sites and the incredible endeavors to find them.

Ancient cultures around the world have aroused fascination and provoked fear with curses and objects used to conjure them like rings, tablets and stones.

From a grand basilica in Vatican City and the towering monuments of Ancient Egypt to a Biblical tower and a lost city in the clouds of Peru, we uncover their construction, purpose and the enduring mysteries they hold.

Hawkeye and Charles set out to test the crew's gullibility when they announce that Marilyn Monroe is due to arrive.

Mildred writes a letter to Hawkeye; and a sergeant tries to kill the captive sniper responsible for his lieutenant's injuries.

Kevin Wenstob negotiates a deal with a big new customer who drives a hard bargain; Erik struggles to fix the mill's broken log loader and Sarah catches an interloper at the mill.

Mike's brother entrusts him to restore his 1964 Buick Riviera dream car; Mike restores a 1966 Beaumont Sport Deluxe; Mike hires a 17-year-old apprentice who's failed her driver's test and needs her licence to do the job.

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.

Kevin Wenstob negotiates a deal with a big new customer who drives a hard bargain; Erik struggles to fix the mill's broken log loader and Sarah catches an interloper at the mill.

Mike's brother entrusts him to restore his 1964 Buick Riviera dream car; Mike restores a 1966 Beaumont Sport Deluxe; Mike hires a 17-year-old apprentice who's failed her driver's test and needs her licence to do the job.

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.

Klinger takes "cool pills"; Hawkeye and B.J. arrange to get a movie banned in Boston to the 4077th.

Father Mulcahy agrees to offer his running abilities in a race that pits the 4077th against the 8063rd.

Levi Strauss partners with a tailor who makes a groundbreaking discovery during the Gold Rush; sparking a blue jean boom and rivalry between two companies that spans generations and builds a billion-dollar industry.

Bold visionaries risk bringing Mexican food to Americans, creating the top-selling condiment, famous snack chip brands and pairing chips and salsa.

A struggling chocolate maker and a young theater assistant create the movie theater concession stand and launch the world's most iconic movie candies.

In the 1950s, middle-aged salesman Ray Kroc is drowning in debt when he's inspired by a roadside burger stand he wants to spread nationwide, McDonald's; he creates the modern model of franchising and ignites a fast-food gold rush.

Klinger takes "cool pills"; Hawkeye and B.J. arrange to get a movie banned in Boston to the 4077th.

Father Mulcahy agrees to offer his running abilities in a race that pits the 4077th against the 8063rd.

Levi Strauss partners with a tailor who makes a groundbreaking discovery during the Gold Rush; sparking a blue jean boom and rivalry between two companies that spans generations and builds a billion-dollar industry.

Some secrets refuse to stay buried; whether it's illicit cargo in a frozen lake, a stolen masterpiece worth millions, or a brothel hidden in the shadow of the Capitol-the truth always resurfaces.

It is hard to believe that the beginnings of modern endoscopy are really all thanks to one professional sword-swallower; or that lack of sleep has some strange upsides; these are some unthinkable experiments.

Three smiths return for a chance to become a two-time winner and have their name forged in history; but to join this elite club, they must overcome one of the most difficult challenges ever.

Mike relives the thrill of stuntman Evel Knievel's legendary career while Robbie and Jersey comb through a stockpile of military relics.

Levi Strauss partners with a tailor who makes a groundbreaking discovery during the Gold Rush; sparking a blue jean boom and rivalry between two companies that spans generations and builds a billion-dollar industry.

Three smiths return for a chance to become a two-time winner and have their name forged in history; but to join this elite club, they must overcome one of the most difficult challenges ever.

Mike relives the thrill of stuntman Evel Knievel's legendary career while Robbie and Jersey comb through a stockpile of military relics.

Bold visionaries risk bringing Mexican food to Americans, creating the top-selling condiment, famous snack chip brands and pairing chips and salsa.

A struggling chocolate maker and a young theater assistant create the movie theater concession stand and launch the world's most iconic movie candies.

In the 1950s, middle-aged salesman Ray Kroc is drowning in debt when he's inspired by a roadside burger stand he wants to spread nationwide, McDonald's; he creates the modern model of franchising and ignites a fast-food gold rush.

Klinger takes "cool pills"; Hawkeye and B.J. arrange to get a movie banned in Boston to the 4077th.

Father Mulcahy agrees to offer his running abilities in a race that pits the 4077th against the 8063rd.

Logger Kevin Wenstob's best day ever turns into his worst, when a sudden disaster threatens to shut down his timber claim and his sawmill.

Mike and the crew take on a World War II-era Power Wagon; a 1968 Chevy Chevelle becomes a nightmare job.

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

Logger Kevin Wenstob's best day ever turns into his worst, when a sudden disaster threatens to shut down his timber claim and his sawmill.

Mike and the crew take on a World War II-era Power Wagon; a 1968 Chevy Chevelle becomes a nightmare job.

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.

Three United Nations delegates visit: a physician who is similar to Charles, an Army officer who teaches yoga and a Swede who catches Margaret's attention.

Charles refuses to solve his annoying snoring problem; Potter's son-in-law visits with some shocking news.

Todd hauls a massive machine as he fights his way home in a final showdown with his nemesis, the infamous Asheweig Road; Scooter calls in a local road crew after losing a battle with an angry hill on his return trip along the goat trail.

After Los Angeles-based MS-13 members are deported back to El Salvador, the now worldwide vicious group attempts to take over U.S. suburbs, but the authorities fight back.

The Chicago Outfit takes over the Windy City, even if it means Al Capone's downfall.

The Bloods will stop at nothing to fight back against their arch-nemesis, the Crips, making national headlines in the process.

America's deadliest prison gang, the Aryan Brotherhood, goes to war with anyone who stands in their way.

The Rollin' 60s Crips attempt to become the dominant street gang in Los Angeles regardless of the cost.

After the Cleveland Mafia bets big on Vegas, the city of Cleveland faces troubles when their boss suddenly dies.

Three United Nations delegates visit: a physician who is similar to Charles, an Army officer who teaches yoga and a Swede who catches Margaret's attention.

Charles refuses to solve his annoying snoring problem; Potter's son-in-law visits with some shocking news.

Todd hauls a massive machine as he fights his way home in a final showdown with his nemesis, the infamous Asheweig Road; Scooter calls in a local road crew after losing a battle with an angry hill on his return trip along the goat trail.

Three smiths return for a chance to become a two-time winner and have their name forged in history; but to join this elite club, they must overcome one of the most difficult challenges ever.

From World War II bombs pulled from the sea and Nazi bunkers buried in sand, to chemical weapons hidden beneath Washington, D.C., and a supernova caught on camera - these explosive discoveries prove that history's blasts from the past can still shake our world today.

Tom goes for one final ride on the trapline to pull his last sets before passing the torch to Sean and Hank; Jake has a showdown for the ages when three lions are cornered in a single tree; Marty makes a last ditch run at the wolverine that has decimated his trapline all season; Lauro explores the Arctic sea ice by dog team and hunts caribou on the frozen tundra; Mike races to rebuild his cookhouse in the wake of a devastating bear invasion.

Lisa, Scooter and company driver Muskie Todd team up as a three-truck convoy to take on the notorious Asheweig Road; the trio must work together to survive a looming disaster.

From World War II bombs pulled from the sea and Nazi bunkers buried in sand, to chemical weapons hidden beneath Washington, D.C., and a supernova caught on camera - these explosive discoveries prove that history's blasts from the past can still shake our world today.

Tom goes for one final ride on the trapline to pull his last sets before passing the torch to Sean and Hank; Jake has a showdown for the ages when three lions are cornered in a single tree; Marty makes a last ditch run at the wolverine that has decimated his trapline all season; Lauro explores the Arctic sea ice by dog team and hunts caribou on the frozen tundra; Mike races to rebuild his cookhouse in the wake of a devastating bear invasion.

Lisa, Scooter and company driver Muskie Todd team up as a three-truck convoy to take on the notorious Asheweig Road; the trio must work together to survive a looming disaster.

After Los Angeles-based MS-13 members are deported back to El Salvador, the now worldwide vicious group attempts to take over U.S. suburbs, but the authorities fight back.

The Chicago Outfit takes over the Windy City, even if it means Al Capone's downfall.

The Bloods will stop at nothing to fight back against their arch-nemesis, the Crips, making national headlines in the process.

America's deadliest prison gang, the Aryan Brotherhood, goes to war with anyone who stands in their way.

The Rollin' 60s Crips attempt to become the dominant street gang in Los Angeles regardless of the cost.

After the Cleveland Mafia bets big on Vegas, the city of Cleveland faces troubles when their boss suddenly dies.

Three United Nations delegates visit: a physician who is similar to Charles, an Army officer who teaches yoga and a Swede who catches Margaret's attention.

Charles refuses to solve his annoying snoring problem; Potter's son-in-law visits with some shocking news.

Kevin faces disasters everywhere; his logging operation is shut down, his main client threatens to walk, and he locks horns with his right-hand man.

Mike restores a 1966 Mustang in the hope of finding a buyer with deep pockets; Connor helps his dad sell a 1968 Plymouth Satellite.

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.

Kevin faces disasters everywhere; his logging operation is shut down, his main client threatens to walk, and he locks horns with his right-hand man.

Mike restores a 1966 Mustang in the hope of finding a buyer with deep pockets; Connor helps his dad sell a 1968 Plymouth Satellite.

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.

A gruff general visits his severely injured son and faces the harsh realities of military life when the young man dies.

An old and dear friend of Col. Potter's arrives with injuries sustained in a careless accident.

Some of the world's most valiant figures overcome the most bizarre circumstances; like a man who survives the apocalypse, or a woman involved in not one, but three maritime disasters; these are the stories of survival against all odds.

An exploration of the world's most fascinating, strange and inexplicable mysteries; compelling contributions from scientists, historians, and witnesses.

An exploration of strange and inexplicable mysteries; contributions from scientists, historians and witnesses as they seek to shed light on how the impossible can happen.

Bizarre, mysterious tales ran rampant and are still being told to this day; are these strange tales of the American frontier simply legend, or was the west far stranger than one could possibly imagine?

A gruff general visits his severely injured son and faces the harsh realities of military life when the young man dies.

An old and dear friend of Col. Potter's arrives with injuries sustained in a careless accident.

Some of the world's most valiant figures overcome the most bizarre circumstances; like a man who survives the apocalypse, or a woman involved in not one, but three maritime disasters; these are the stories of survival against all odds.

A mysterious object flies over a military base-could it actually be alive?

Bizarre, mysterious tales ran rampant and are still being told to this day; are these strange tales of the American frontier simply legend, or was the west far stranger than one could possibly imagine?

From UFO sightings witnessed by thousands to missing civilizations with evidence left in their wake, North America is filled with unresolved questions and mysteries.

History is full of people pushing the limits, but some are more astonishing than others; like the man who single-handedly liberated a town during World War II; or an epic robbery in Buenos Aires that was pulled off with zero casualties.

After lab tests reveal stunning clues about the ceramic material, the team faces a hard decision about their investigation of the Mesa.

From UFO sightings witnessed by thousands to missing civilizations with evidence left in their wake, North America is filled with unresolved questions and mysteries.

History is full of people pushing the limits, but some are more astonishing than others; like the man who single-handedly liberated a town during World War II; or an epic robbery in Buenos Aires that was pulled off with zero casualties.

An exploration of the world's most fascinating, strange and inexplicable mysteries; compelling contributions from scientists, historians, and witnesses.

An exploration of strange and inexplicable mysteries; contributions from scientists, historians and witnesses as they seek to shed light on how the impossible can happen.

Bizarre, mysterious tales ran rampant and are still being told to this day; are these strange tales of the American frontier simply legend, or was the west far stranger than one could possibly imagine?

A gruff general visits his severely injured son and faces the harsh realities of military life when the young man dies.

An old and dear friend of Col. Potter's arrives with injuries sustained in a careless accident.

Taylor unearths new testimony from a witness to Slumach's execution; a deathbed letter written by a man who claims to have found Slumach's gold sends Adam and Kru on a dangerous glacial trek in search of the fabled mother lode.

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.

The Yukon's Civil Air Search and Rescue Association battles flying conditions in their search for a historic missing plane that had 44 people on board; the Dawson City Fire Department responds to a 911 call that puts the town in jeopardy.

Taylor unearths new testimony from a witness to Slumach's execution; a deathbed letter written by a man who claims to have found Slumach's gold sends Adam and Kru on a dangerous glacial trek in search of the fabled mother lode.

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.

Before toilet paper, Americans used just about anything, until the Scott brothers turn a mistake into an opportunity and invent the toilet paper roll.

In the absence of humanity, the world's cities like New York, Orlando and Rio de Janeiro are reclaimed by nature, as forests rise, animals roam free and fire and flood undo centuries of construction.

When humanity vanishes, the vast and fragile infrastructure hidden underground-from subways and pipelines to one of the big coal seams in the United States-begins to unravel.

From soaring skyscrapers like One World Trade Center to impenetrable vaults like Fort Knox, humanity's strongest structures were engineered to defy disaster; but in a world without people, even the mightiest begin to crack.

In a world without humans, the deserts once tamed rise to reclaim great triumphs: from Las Vegas to Dubai's Burj Khalifa; as sand, salt, and sun dismantle cities, the wastelands quietly take back the ground borrowed.

When humanity disappears, the global retail machine collapses, malls rot, shipping lanes turn explosive and ghostly grocery stores become battlefields for rodents, predators and time.

In the absence of humanity, the world's cities like New York, Orlando and Rio de Janeiro are reclaimed by nature, as forests rise, animals roam free and fire and flood undo centuries of construction.

When humanity vanishes, the vast and fragile infrastructure hidden underground-from subways and pipelines to one of the big coal seams in the United States-begins to unravel.