History

For decades, incredible claims have been made about an extraterrestrial presence on Earth, and the government has gone to great lengths to discredit them.

All over the world, there are people who claim they have been abducted by aliens; since the 1970s, a growing number of researchers have dedicated their lives to uncover what is behind this disturbing phenomenon.

Examining how thousands of years ago, people all over the world described encounters with enormous, human-like beings; exploring how some archaeologists claim to have found skeletons of extraordinary size; is it possible the giants actually existed?

In the age of smartphones and social media, more evidence of otherworldly activity has come to light than ever before.

Across continents and cultures, remote caves, mountains, and subterranean labyrinths have long been regarded as secret refuges-hidden homes of gods, giants, and beings not entirely human; Australia's Black Mountains are steeped in tales of vanishing travelers and otherworldly guardians, while Native American legends link the Oregon Caves to Bigfoot-like creatures who retreat into underground sanct

For thousands of years, Scotland has been an epicenter of otherworldly phenomena; it is home to mysterious ancient stone circles, stories of strange beings, and is a major hotspot for UFO sightings.

Throughout the world there are mysterious ancient stones shaped into perfect spheres; many of them show clear evidence of being manmade and some completely defy explanation; the mystery of the stone spheres could provide clues about humankind's past.

For decades, incredible claims have been made about an extraterrestrial presence on Earth, and the government has gone to great lengths to discredit them.

All over the world, there are people who claim they have been abducted by aliens; since the 1970s, a growing number of researchers have dedicated their lives to uncover what is behind this disturbing phenomenon.

Examining how thousands of years ago, people all over the world described encounters with enormous, human-like beings; exploring how some archaeologists claim to have found skeletons of extraordinary size; is it possible the giants actually existed?

In the age of smartphones and social media, more evidence of otherworldly activity has come to light than ever before.

While cruising through Southern California on a special mission for Danielle, Mike uncovers a legendary signed guitar along with story boards and scripts from one of America's favorite cartoon family, the Simpsons.

The team battles against the elements as mass floods threaten to destroy the automotive treasures left behind by generations of commercial fisheries.

Matt's team turns west on a mission to uncover iconic pieces from Canada's black gold rush era.

The Flashback team finds some mint vintage boot-making salvage at an old factory that could be perfect for one of Ted's favorite clients.

The team battles against the elements as mass floods threaten to destroy the automotive treasures left behind by generations of commercial fisheries.

Matt's team turns west on a mission to uncover iconic pieces from Canada's black gold rush era.

The everyday products that are way more dangerous than meets the unsuspecting eye; what were the most ill-advised and risky household products?

From a doctor who swallowed Yellow Fever vomit to prove a theory, to another who stitched together a two-headed dog, history's boldest experiments reveal just how far some minds will go; buckle in for a flying lawn chair ride, hear sound played through a dead man's ear, and witness a billionaire's bloody hunt for immortality; these are the maddest minds-and their most unbelievable experiments.

On December 11, 1978, a gang of thieves lifted around $5 million in cash and $800,000 in jewelry from a luxury airline hangar at New York's JFK Airport, marking the largest heist in U.S. history at that time. The authorities interview employees and find a connection to local mafia bosses... but every time they close in on a potential suspect, that suspect ends up dead. Almost 50 years later, they

In a perfectly planned robbery, thieves steal half a billion dollars in masterpieces from the Gardner Museum in Boston; it's been three decades since the brazen heist, and an exhaustive search has failed to recover the stolen goods.

From ancient battles at Cannae and Agincourt, to World War II's Battle of the Bulge and the Battle of Stalingrad; these are history's deadliest conflicts.

The everyday products that are way more dangerous than meets the unsuspecting eye; what were the most ill-advised and risky household products?

An investigation into what drives certain people to deceive and execute outrageous and daring plots; a look into how some elaborate crimes, from elusive imposters disguised as foreign doctors or socialites, to dangerous killers.

Do certain weapons recorded in the pages of history, like the dagger of King Tut or the Swords of Damascus, actually contain incredible power?

From a legendary city swallowed by the jungle, to an underground metropolis stretching 18 levels deep, and even a forgotten pyramid from a lost civilization, sometimes the biggest mysteries on Earth are closer than we think.

From a doctor who swallowed Yellow Fever vomit to prove a theory, to another who stitched together a two-headed dog, history's boldest experiments reveal just how far some minds will go; buckle in for a flying lawn chair ride, hear sound played through a dead man's ear, and witness a billionaire's bloody hunt for immortality; these are the maddest minds-and their most unbelievable experiments.

From ancient battles at Cannae and Agincourt, to World War II's Battle of the Bulge and the Battle of Stalingrad; these are history's deadliest conflicts.

On December 11, 1978, a gang of thieves lifted around $5 million in cash and $800,000 in jewelry from a luxury airline hangar at New York's JFK Airport, marking the largest heist in U.S. history at that time. The authorities interview employees and find a connection to local mafia bosses... but every time they close in on a potential suspect, that suspect ends up dead. Almost 50 years later, they

From a legendary city swallowed by the jungle, to an underground metropolis stretching 18 levels deep, and even a forgotten pyramid from a lost civilization, sometimes the biggest mysteries on Earth are closer than we think.

The everyday products that are way more dangerous than meets the unsuspecting eye; what were the most ill-advised and risky household products?

In a perfectly planned robbery, thieves steal half a billion dollars in masterpieces from the Gardner Museum in Boston; it's been three decades since the brazen heist, and an exhaustive search has failed to recover the stolen goods.

From a doctor who swallowed Yellow Fever vomit to prove a theory, to another who stitched together a two-headed dog, history's boldest experiments reveal just how far some minds will go; buckle in for a flying lawn chair ride, hear sound played through a dead man's ear, and witness a billionaire's bloody hunt for immortality; these are the maddest minds-and their most unbelievable experiments.

On December 11, 1978, a gang of thieves lifted around $5 million in cash and $800,000 in jewelry from a luxury airline hangar at New York's JFK Airport, marking the largest heist in U.S. history at that time. The authorities interview employees and find a connection to local mafia bosses... but every time they close in on a potential suspect, that suspect ends up dead. Almost 50 years later, they

From a legendary city swallowed by the jungle, to an underground metropolis stretching 18 levels deep, and even a forgotten pyramid from a lost civilization, sometimes the biggest mysteries on Earth are closer than we think.

From ancient battles at Cannae and Agincourt, to World War II's Battle of the Bulge and the Battle of Stalingrad; these are history's deadliest conflicts.

Mike restores a 1938 International Harvester; the shop holds a swap meet; wedding bells ring for Greg.

Logger Kevin Wenstob finds himself in a battle of wills against an opposing crew trying to thwart his plans to expand his sawmill.

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.

Mike restores a 1938 International Harvester; the shop holds a swap meet; wedding bells ring for Greg.

Logger Kevin Wenstob finds himself in a battle of wills against an opposing crew trying to thwart his plans to expand his sawmill.

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 fiancée, while the discovery of a gold bar and lots of cash spell trouble for another traveler.

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.

One of the most chilling aviation mysteries in modern day: a Boeing 777, carrying 239 people, vanishes over the Indian Ocean; nearly a decade later, no one knows what really happened to Malaysia Flight 370.

A man is caught in the collapse of the World Trade Center; a freak rail accident slices a man in half; a hippo attacks a safari guide in Zimbabwe.

A woman and her son encounter the legendary Jersey Devil; a giant reptile terrorizes a South Carolina town; a creature resembling a werewolf is spotted in Wisconsin.

An Iranian-American psychopath goes to the men's city jail in Orange County Jail in Southern California; before he gets sent to a higher security prison, he escapes by crawling up the plumbing chase and rappelling down the side of the prison.

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.

One of the most chilling aviation mysteries in modern day: a Boeing 777, carrying 239 people, vanishes over the Indian Ocean; nearly a decade later, no one knows what really happened to Malaysia Flight 370.

An Iranian-American psychopath goes to the men's city jail in Orange County Jail in Southern California; before he gets sent to a higher security prison, he escapes by crawling up the plumbing chase and rappelling down the side of the prison.

Amelia Earhart, the world's most famous female pilot, takes off on the final leg of a record-breaking flight; but Earhart never arrives at her next stop: an island in the Pacific Ocean; the search for this flier has revealed conflicting stories.

The gigantic statues of Easter Island have mystified humanity for centuries; how in the world did an ancient civilization, with only primitive tools, carve and then move thousands of these rock monuments around the island, and why?

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?

An Iranian-American psychopath goes to the men's city jail in Orange County Jail in Southern California; before he gets sent to a higher security prison, he escapes by crawling up the plumbing chase and rappelling down the side of the prison.

Amelia Earhart, the world's most famous female pilot, takes off on the final leg of a record-breaking flight; but Earhart never arrives at her next stop: an island in the Pacific Ocean; the search for this flier has revealed conflicting stories.

The gigantic statues of Easter Island have mystified humanity for centuries; how in the world did an ancient civilization, with only primitive tools, carve and then move thousands of these rock monuments around the island, and why?

One of the most chilling aviation mysteries in modern day: a Boeing 777, carrying 239 people, vanishes over the Indian Ocean; nearly a decade later, no one knows what really happened to Malaysia Flight 370.

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?

Amelia Earhart, the world's most famous female pilot, takes off on the final leg of a record-breaking flight; but Earhart never arrives at her next stop: an island in the Pacific Ocean; the search for this flier has revealed conflicting stories.

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.

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

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

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.

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

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

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.

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.

Since the dawn of humanity, rituals have marked our passage from life to death; from the burials of biblical heroes, to an Egyptian guide to the afterlife, to prehistoric mummification and fiery funerals.

A Mexican rancher kills a strange creature; an Arizona woman claims she is the daughter of an alien; extraterrestrials are befriended by a serviceman.

A painting is reportedly linked to a series of house fires in Britain; a malevolent doll ruins lives; a California heiress begins a bizarre construction project.

Don goes deep beneath the great lakes and explores flooded caves as he searches for evidence of a mysterious, cave-dwelling society that may have been the first people to reach America.

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.

Since the dawn of humanity, rituals have marked our passage from life to death; from the burials of biblical heroes, to an Egyptian guide to the afterlife, to prehistoric mummification and fiery funerals.

Don goes deep beneath the great lakes and explores flooded caves as he searches for evidence of a mysterious, cave-dwelling society that may have been the first people to reach America.

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?

After decades of secrecy, denials and cover-ups, the CIA in 2013 declassify documents confirming the existence of secret military research facility Area 51.

Some of history's boldest missions succeeded because the world was looking the wrong way; the CIA concealed covert missions behind Air America's civilian façade, British intelligence planted a falsified invasion plan on a corpse to mislead Hitler, and "Agent Sonya" blended into English suburbia while funneling atomic secrets to Moscow; David Duchovny takes us into the long-spun elaborate tales gov

Since the dawn of humanity, rituals have marked our passage from life to death; from the burials of biblical heroes, to an Egyptian guide to the afterlife, to prehistoric mummification and fiery funerals.

After decades of secrecy, denials and cover-ups, the CIA in 2013 declassify documents confirming the existence of secret military research facility Area 51.

Some of history's boldest missions succeeded because the world was looking the wrong way; the CIA concealed covert missions behind Air America's civilian façade, British intelligence planted a falsified invasion plan on a corpse to mislead Hitler, and "Agent Sonya" blended into English suburbia while funneling atomic secrets to Moscow; David Duchovny takes us into the long-spun elaborate tales gov

Don goes deep beneath the great lakes and explores flooded caves as he searches for evidence of a mysterious, cave-dwelling society that may have been the first people to reach America.

After decades of secrecy, denials and cover-ups, the CIA in 2013 declassify documents confirming the existence of secret military research facility Area 51.

Some of history's boldest missions succeeded because the world was looking the wrong way; the CIA concealed covert missions behind Air America's civilian façade, British intelligence planted a falsified invasion plan on a corpse to mislead Hitler, and "Agent Sonya" blended into English suburbia while funneling atomic secrets to Moscow; David Duchovny takes us into the long-spun elaborate tales gov

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.

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

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.

Dave and his daughter Alyssa struggle to recover a vintage ore cart from an abandoned copper mine; Angela struggles on what should be an easy job, and Dale goes on an epic hunt for furnace oil for Donny's shop.

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

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.

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.

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.

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.

An octopus correctly selects winning teams in a soccer tournament; dogs leap off a Scottish bridge to their deaths; a lost cat makes a cross-country journey.

Crew members killed in a deadly airplane accident are spotted on another flight; a painting is blamed for an attack on a child; a ghost attacks a New Zealand man.

The twisted origin stories of some of history's most diabolically creative and brutal torture devices, from the "Iron Maiden" to the pear of anguish.

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.

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.

Two of the "Forged in Fire" champions head back into the arena for a chance at taking on one of the judges, tasked with making the legendary Tizona of El Cid in eight hours.

Two former "Forged in Fire" champions duel it out in a five-hour round making a pichangatti to earn the right to go head-to-head with one of our formidable judges.

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.

As the Arctic winter deepens, a mistake leaves one survivalist racing to save their shelter from going up in smoke; a brazen bear raid on a critical food source leaves another participant reeling and a severe lack of food and the overpowering pull of home forces all of them to dig deeper than ever before.

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.

As the Arctic winter deepens, a mistake leaves one survivalist racing to save their shelter from going up in smoke; a brazen bear raid on a critical food source leaves another participant reeling and a severe lack of food and the overpowering pull of home forces all of them to dig deeper than ever before.