History

Is a famous volcano in Mexico actually home to a UFO base? Could a strange sound captured underwater in Loch Ness be the heartbeat of the legendary monster? Did a group of snowmobilers find the remains of an alien in the Canadian wilderness? Tony Harris and his team of experts dive into these claims to find the truth.

History's biggest discoveries aren't always its best. A diamond heist that unravels in a ditch, a colossal burning crater dubbed the "Gateway to Hell," and an island dominated by venomous vipers prove that when finds go big, they can also go very bad.

Are UFOs behind bizarre scorch marks found in a farmer's field?; could a massive creature be lurking in a Turkish lake?; s there a superhuman that can withstand heat of nearly six thousand degrees?

A photograph of a UFO hovering over Holloman Air Force Base in New Mexico; a cabin built in a supposedly anomalous spot that defies gravity in the Redwood Forests; the origin of frightening howls recorded in Witset, British Columbia.

Why are the historic McMinnville photos, captured nearly 75 years ago, still considered to be credible and compelling proof for the existence of UFOs?; did a camera capture signs of paranormal activity in an office?; can this elephant speak Korean?

Maj. Charles Winchester assumes command of the 4077th.

With a bottle of wine, Hawkeye goes looking for romance.

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.

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.

Bryan Jr. takes his son to Missouri, hoping to assemble a house; Beat builds a Western-style saloon; Peter and Joel make a smelly bet.

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.

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 family risks losing their stacks of cash; officers are on high alert after an American declares he is packing heat; CBP suspect a traveler is pulling a con job with his US work visa.

A CBP canine tracks a THC-toting traveler.

Klinger becomes a hero when an explosion rocks the operating room.

The 4077th suffers a long, sleepless night during a scorching heat wave.

From the sports arena to the circus ring and even to the silver screen, this episode dishes on the scene-stealing big-budget items connected to some of the greatest performers of all time.

Two rival rail companies, led by Charles Crocker of the Central Pacific and Thomas Durant of the Union Pacific, stop at nothing to best each other.

A little-known 19th-century French artist embarks on a 20-year odyssey to build the tallest statue in the world and erect it on U.S. soil.

France and America compete to build a path just 50 miles long that will connect the Atlantic and Pacific oceans; it will cost 30,000 lives, $600 million dollars, and require overcoming many obstacles.

Klinger becomes a hero when an explosion rocks the operating room.

The 4077th suffers a long, sleepless night during a scorching heat wave.

From the sports arena to the circus ring and even to the silver screen, this episode dishes on the scene-stealing big-budget items connected to some of the greatest performers of all time.

History's biggest discoveries aren't always its best. A diamond heist that unravels in a ditch, a colossal burning crater dubbed the "Gateway to Hell," and an island dominated by venomous vipers prove that when finds go big, they can also go very bad.

The Navy SEAL is forged in pain: intense training that transforms him into a fighting force capable of operating in any environment, from sea to land to air; originating during World War II and further honed in the Vietnam War, the SEAL develops cutting-edge tactics in special operations, making him a highly skilled and adaptable fighter.

Two pizza juggernauts expand their empires as a new contender turns the fight into a three-way race to become America's big pizza chain; they push the limits with promotions, creations and inventive sides, only to discover a fourth chain charging onto the battlefield.

Remember when "everybody's doing it" was the reason enough to dive in headfirst?; from gravity-defying flagpole sitting and phone booth cramming, to pet skunks and goldfish gulpers, revealing the crazes that are sweeping the nation; these obsessions are risky and impossible to resist; it is a trip back to the fads that push the limits and make hazardous history must-see mayhem.

From the sports arena to the circus ring and even to the silver screen, this episode dishes on the scene-stealing big-budget items connected to some of the greatest performers of all time.

Two pizza juggernauts expand their empires as a new contender turns the fight into a three-way race to become America's big pizza chain; they push the limits with promotions, creations and inventive sides, only to discover a fourth chain charging onto the battlefield.