Most of the world's holiest places sit in plain sight, able to be seen and experienced, but there are some hidden deep underground.

Cash, jewels, and two million dollars in gold bars; Jesse James and his gang robbed trains, stagecoaches and banks, and buried the spoils; but only a fraction of the millions has actually been found.

Quawntay Adams, a young African American man from Los Angeles gets caught up in a large-scale marijuana bust and is sentenced to a long prison term; when he finds out he is going to be a father, he determines to break out of his cell.

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.

Most of the world's holiest places sit in plain sight, able to be seen and experienced, but there are some hidden deep underground.

Reports of a strange spinning vortex with a bright white center in the skies over Oklahoma; a sealed video in the Vatican archives allegedly shows a real case of demonic possession.

Cash, jewels, and two million dollars in gold bars; Jesse James and his gang robbed trains, stagecoaches and banks, and buried the spoils; but only a fraction of the millions has actually been found.

Mike kicks off his fifth year in business with the restoration of a rare 1971 International Scout II, before teaming up with his brothers to find a new home for their late father's 1964 Mercury motor.

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

According to a 1980s author and historian, the Spanish have a long and hidden history of gold exploration in Pitt Lake, and Slumach found their cache.

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.

Mike kicks off his fifth year in business with the restoration of a rare 1971 International Scout II, before teaming up with his brothers to find a new home for their late father's 1964 Mercury motor.

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.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

An event outside a U.S. Air Force base near the Rendlesham Forest in England becomes an international legend, and one of history's strangest unidentified encounters; for more than 40 years, the question has endured.

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.

With over 7,500 hours investigating the mystery; top D.B. Cooper expert Eric Ulis believes that he's found the true location where Cooper landed during his daring dive.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

It's one of the most famous stories from the Bible; for thousands of years the tale of Noah's Ark is shared, but little is known about what happened to the ark.

It's history's most famous lost city; the island kingdom that's baffled explorers for centuries; some say Atlantis is a myth, while others insist it was a very real place wiped out thousands of years ago.

An event outside a U.S. Air Force base near the Rendlesham Forest in England becomes an international legend, and one of history's strangest unidentified encounters; for more than 40 years, the question has endured.

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.

Dr. J. Allen Hynek was a pioneering scientist who developed smart weapons, optical tracking systems and space satellites; yet he is best known as the notorious government UFO debunker who became one of the founding fathers of ufology.

It's history's most famous lost city; the island kingdom that's baffled explorers for centuries; some say Atlantis is a myth, while others insist it was a very real place wiped out thousands of years ago.

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.

Dr. J. Allen Hynek was a pioneering scientist who developed smart weapons, optical tracking systems and space satellites; yet he is best known as the notorious government UFO debunker who became one of the founding fathers of ufology.

It's one of the most famous stories from the Bible; for thousands of years the tale of Noah's Ark is shared, but little is known about what happened to the ark.

It's history's most famous lost city; the island kingdom that's baffled explorers for centuries; some say Atlantis is a myth, while others insist it was a very real place wiped out thousands of years ago.

An event outside a U.S. Air Force base near the Rendlesham Forest in England becomes an international legend, and one of history's strangest unidentified encounters; for more than 40 years, the question has endured.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

Mike burns the candle at both ends, working at remote locations for his rock scaling business, while trying to manage the shop's restoration of a 1969 Road Runner convertible from afar.

Adam, Kru and Tony follow the path of a failed 1982 Vancouver news team led by a Slumach gold hunter and mystic dowser.

After aborting his mission last season, lone wolf prospector David Muise returns undeterred and looking for a partner.

All over the world are forbidden triangles that are mysterious regions where ships, planes and people enter and then just disappear; they are found in Bermuda, Alaska, Japan and elsewhere.

Mike burns the candle at both ends, working at remote locations for his rock scaling business, while trying to manage the shop's restoration of a 1969 Road Runner convertible from afar.

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.

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

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

In an all-UFO special episode, Tony Harris breaks down the latest developments and most compelling photographic evidence in a tumultuous year of UFO revelations.

Analyzing if a Korean soldier captured during D-Day fighting for the Nazis was the most captured person in the history of war.

Veterans Rudy Reyes and Ronnie Adkins break down the evidence behind the most mysterious photos, films, and recordings in battlefield history.

An American Korean War pilot is shot down and declared dead, but he could have been taken prisoner by the Soviets; a strange recording may have captured the real first woman in space; discussing the U.S. training dolphins to kill.

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

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

In an all-UFO special episode, Tony Harris breaks down the latest developments and most compelling photographic evidence in a tumultuous year of UFO revelations.

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.

Dr. J. Allen Hynek was a pioneering scientist who developed smart weapons, optical tracking systems and space satellites; yet he is best known as the notorious government UFO debunker who became one of the founding fathers of ufology.

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?

Does a Connecticut man summon a UFO? Are the mysterious lights over the pyramids of Giza visitors from another world? Can an Okla. man make contact with aliens?

In an all-UFO special episode, Tony Harris breaks down the latest developments and most compelling photographic evidence in a tumultuous year of UFO revelations.

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?

Does a Connecticut man summon a UFO? Are the mysterious lights over the pyramids of Giza visitors from another world? Can an Okla. man make contact with aliens?

Analyzing if a Korean soldier captured during D-Day fighting for the Nazis was the most captured person in the history of war.

Veterans Rudy Reyes and Ronnie Adkins break down the evidence behind the most mysterious photos, films, and recordings in battlefield history.

An American Korean War pilot is shot down and declared dead, but he could have been taken prisoner by the Soviets; a strange recording may have captured the real first woman in space; discussing the U.S. training dolphins to kill.

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

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

Mike enlists his buddy Dave to help him rid the Field of Dreams of a junk-stuffed school bus; Richard revives the luxury of private rail cars using an old trailer; Russell leans on an old friend to help him build a truck.

The final words of a lifelong gold hunter send Adam, Kru and Daryl Friesen through an icy gauntlet high above Pitt Lake.

An old map connected to testimony from an 1891 eyewitness account of Slumach's hanging sheds light on the legend.

Whether legends of vast, lost treasures hidden throughout the U.S. are real or tall tales.

Mike enlists his buddy Dave to help him rid the Field of Dreams of a junk-stuffed school bus; Richard revives the luxury of private rail cars using an old trailer; Russell leans on an old friend to help him build a truck.

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.

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

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

Jim Folger discovers a new way to bring coffee to the masses; then another famous coffee brand gets its big break at the Maxwell House Hotel in Nashville; the creation of then coffee machines that help make coffee a billion-dollar industry.

Monkey glands for immortality, hypnotized assassins and a brain-linked cyborg couple; investigating some of the strangest experiments on record.

Exploring the stories of the planet's fantastic beings.

Human bones as a "miracle cure" for gout; living mummies buried alive; a truly bizarre Victorian way to lose weight - with tapeworms; from daily rites to once-in-a-lifetime rituals, the stranger side of human nature is revealed in these rituals.

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

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

Jim Folger discovers a new way to bring coffee to the masses; then another famous coffee brand gets its big break at the Maxwell House Hotel in Nashville; the creation of then coffee machines that help make coffee a billion-dollar industry.

Monkey glands for immortality, hypnotized assassins and a brain-linked cyborg couple; investigating some of the strangest experiments on record.

Exploring the stories of the planet's fantastic beings.

The biggest names in computers go head-to-head in a race to create the first portable computers; through failures, alliances and the return of an American icon, they'll usher in their first ever handheld device.

Remember when childhood came with a side of danger? Think back to the toys and daredevil playground antics that once defined growing up; uncovering explosive science kits, high-flying kite tubes and more.

Jim Folger discovers a new way to bring coffee to the masses; then another famous coffee brand gets its big break at the Maxwell House Hotel in Nashville; the creation of then coffee machines that help make coffee a billion-dollar industry.

The biggest names in computers go head-to-head in a race to create the first portable computers; through failures, alliances and the return of an American icon, they'll usher in their first ever handheld device.

Remember when childhood came with a side of danger? Think back to the toys and daredevil playground antics that once defined growing up; uncovering explosive science kits, high-flying kite tubes and more.

Human bones as a "miracle cure" for gout; living mummies buried alive; a truly bizarre Victorian way to lose weight - with tapeworms; from daily rites to once-in-a-lifetime rituals, the stranger side of human nature is revealed in these rituals.

Monkey glands for immortality, hypnotized assassins and a brain-linked cyborg couple; investigating some of the strangest experiments on record.

Exploring the stories of the planet's fantastic beings.

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

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

Mike takes on a rare Hertz Shelby Mustang for his friend's brother, but the badly damaged car might be too far-gone; a drag race against another local shop turns into a Chevelle showdown.

A recurring mine marker points the team east to neighboring Harrison Lake as leads and legend line up; clues found in a 1950s article by an investigative reporter place a lost Spanish gold mine directly on Slumach's path.

The source of Slumach's lost gold.

Many people are afraid of walking into a cursed place or touching a reportedly cursed object; looking at if whether or not curses are real and how are they brought into existence.

Mike takes on a rare Hertz Shelby Mustang for his friend's brother, but the badly damaged car might be too far-gone; a drag race against another local shop turns into a Chevelle showdown.

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.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

The source of Slumach's lost gold.

Rob and Adam test the yellow head moray eel for possible venom effects but must resort to a risky, bloody bite; venom is not the issue for the electric eel.

It's America vs. Australia in a battle royale of pain administered by sharks; after getting stung by both, Adam and Rob realize that when their countries win, they lose.

Adam and Rob serve up their most annoying stings in the history of the pain index.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

The fascination with lost treasures has captured mankind's curiosity for centuries, and new evidence and research have led many across the globe in the quest for vast riches.

The biggest names in computers go head-to-head in a race to create the first portable computers; through failures, alliances and the return of an American icon, they'll usher in their first ever handheld device.

Remember when childhood came with a side of danger? Think back to the toys and daredevil playground antics that once defined growing up; uncovering explosive science kits, high-flying kite tubes and more.

The source of Slumach's lost gold.

Taylor Starr, Adam Palmer, Kru Williams and Don Froese band together to solve the legend of Slumach's lost gold mine.

The fascination with lost treasures has captured mankind's curiosity for centuries, and new evidence and research have led many across the globe in the quest for vast riches.

The source of Slumach's lost gold.

Taylor Starr, Adam Palmer, Kru Williams and Don Froese band together to solve the legend of Slumach's lost gold mine.

Many people are afraid of walking into a cursed place or touching a reportedly cursed object; looking at if whether or not curses are real and how are they brought into existence.

Adam and Rob serve up their most annoying stings in the history of the pain index.

It's America vs. Australia in a battle royale of pain administered by sharks; after getting stung by both, Adam and Rob realize that when their countries win, they lose.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

JF begins restoring a 1928 Model A Roadster, while Avery takes on a 1941 military vehicle and these antique machines are full of challenges; Mike chases redemption at the races.

The source of Slumach's lost gold.

Taylor Starr, Adam Palmer, Kru Williams and Don Froese band together to solve the legend of Slumach's lost gold mine.

The question of the identity of Jack the Ripper has baffled police investigators, historians, and armchair detectives for over a century, even with media offering its own unique take on the killer's identity.

JF begins restoring a 1928 Model A Roadster, while Avery takes on a 1941 military vehicle and these antique machines are full of challenges; Mike chases redemption at the races.

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.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

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

Imagining free falling 30,000 feet without a parachute, or being buried alive and living to tell the tale; these are improbable yet true-life tales of surviving the most extraordinary conditions.

From massive asteroids and deadly bursts of radiation to microscopic alien viruses, each one of these cosmic dangers may end human civilization as we know it. Can we prepare for the inevitable calamity that may be coming our way? Or are we doomed to oblivion?

Humanity has worshipped the Sun since the beginning of time, and yet even with modern technology, so little is known about it; analyzing if unlocking the mysteries of the Sun can be the difference between life and death for human civilization.

As humanity makes plans to travel beyond the Moon to new worlds, it is necessary to assess how humans are preparing to become extraterrestrials; analyzing how humanity will survive this trip into the unknown.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

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

Imagining free falling 30,000 feet without a parachute, or being buried alive and living to tell the tale; these are improbable yet true-life tales of surviving the most extraordinary conditions.

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?

Uncovering the secrets behind ancient cultures and civilizations such as the Mayan empire, the Khmer people at Angkor Wat and the Roman city of Pompeii.

Isolated along the southernmost part of the planet, Antarctica is best known as the frozen continent.

From a dog's space voyage, to a harrowing story of Arctic survival, to various trips through time; journeys so extraordinary that they are truly unbelievable.

Taylor Starr, Adam Palmer, Kru Williams and Don Froese band together to solve the legend of Slumach's lost gold mine.

Isolated along the southernmost part of the planet, Antarctica is best known as the frozen continent.

From a dog's space voyage, to a harrowing story of Arctic survival, to various trips through time; journeys so extraordinary that they are truly unbelievable.

Imagining free falling 30,000 feet without a parachute, or being buried alive and living to tell the tale; these are improbable yet true-life tales of surviving the most extraordinary conditions.

As humanity makes plans to travel beyond the Moon to new worlds, it is necessary to assess how humans are preparing to become extraterrestrials; analyzing how humanity will survive this trip into the unknown.

Humanity has worshipped the Sun since the beginning of time, and yet even with modern technology, so little is known about it; analyzing if unlocking the mysteries of the Sun can be the difference between life and death for human civilization.

Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

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

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.

The team tracks down several historic vehicles in the remote region of Rainy River, in Northwestern Ontario; as Steve and Lee compete with Dave, Matt and Jess hit the skies in search of a historic railway truck to assist a local museum.

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.

Tony Harris travels to Skinwalker Ranch, a place known for strange alien encounters, while experts scrutinize some of the most compelling video evidence of UFOs.

Tony Harris and the team of experts at Skinwalker Ranch investigate sightings of strange and legendary creatures around the globe.

Tony and his team of experts examine visual evidence of extraterrestrial encounters to determine what's behind the strange occurrences and how they relate to the peculiar events at the legendary Skinwalker Ranch.

Tony Harris and the team at Skinwalker Ranch investigate if the evidence is proof mythical creatures exist or are just folklore.

At Skinwalker Ranch, portals from another dimension and glowing orbs in the sky raise serious questions; Tony and his team of experts examine related videos worldwide.

A team of journalists and experts analyzes video evidence of incredible structures that defy the current world-view.

A sheep circle resembling a crop circle and an astrophotographer capturing a potential alien army on the moon causes Tony Harris and his team at Skinwalker Ranch to believe that this could be evidence of alien technology.

Tony Harris and his team of experts use the notorious Skinwalker Ranch as their home base for analyzing some of the most bizarre sounds and energies recorded around the world.

After the team's final experiment of the year, stunning revelations are made all across Skinwalker Ranch.

Matty Blake and the team break down how the phenomena, and the locations where they happen on Skinwalker Ranch, may all be connected.

Dr. Travis Taylor reviews some of the most compelling evidence that the team has documented so far, which suggests they may be close to revealing the secret of Skinwalker Ranch.

When a series of deadly explosions hits oil derricks across Los Angeles, the team must hunt down an activist-turned-terrorist; Deacon and his wife work to free a reformed drug dealer who they believe was sent away for a murder he didn't commit.

When Hicks witnesses the assassination of his longtime friend, the team races to find the shooter and determine why he was targeted; Luca struggles with how to help his brother after he's arrested.

When a plane carrying Street and the dangerous prisoner he's transporting is hijacked, the team races to save the innocent passengers onboard - and one of their own; Hondo take a big step in his relationship with Nichelle.

When a series of deadly explosions hits oil derricks across Los Angeles, the team must hunt down an activist-turned-terrorist; Deacon and his wife work to free a reformed drug dealer who they believe was sent away for a murder he didn't commit.

When Hicks witnesses the assassination of his longtime friend, the team races to find the shooter and determine why he was targeted; Luca struggles with how to help his brother after he's arrested.

When a plane carrying Street and the dangerous prisoner he's transporting is hijacked, the team races to save the innocent passengers onboard - and one of their own; Hondo take a big step in his relationship with Nichelle.

After the team's final experiment of the year, stunning revelations are made all across Skinwalker Ranch.

Matty Blake and the team break down how the phenomena, and the locations where they happen on Skinwalker Ranch, may all be connected.

Dr. Travis Taylor reviews some of the most compelling evidence that the team has documented so far, which suggests they may be close to revealing the secret of Skinwalker Ranch.

A late collector's home features a stockpile of wheels; Mike offers six figures to take home five rare motorbikes; Danielle nails a mission for Jack White; Robbie and Dave transport a legendary recording trailer to its new home in Detroit.

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.

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.

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

The source of Slumach's lost gold.

Taylor Starr, Adam Palmer, Kru Williams and Don Froese band together to solve the legend of Slumach's lost gold mine.

Isolated along the southernmost part of the planet, Antarctica is best known as the frozen continent.

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.

From a dog's space voyage, to a harrowing story of Arctic survival, to various trips through time; journeys so extraordinary that they are truly unbelievable.

When a series of deadly explosions hits oil derricks across Los Angeles, the team must hunt down an activist-turned-terrorist; Deacon and his wife work to free a reformed drug dealer who they believe was sent away for a murder he didn't commit.

When Hicks witnesses the assassination of his longtime friend, the team races to find the shooter and determine why he was targeted; Luca struggles with how to help his brother after he's arrested.

When a plane carrying Street and the dangerous prisoner he's transporting is hijacked, the team races to save the innocent passengers onboard - and one of their own; Hondo take a big step in his relationship with Nichelle.

Remember when childhood came with a side of danger? Think back to the toys and daredevil playground antics that once defined growing up; uncovering explosive science kits, high-flying kite tubes and more.

Isolated along the southernmost part of the planet, Antarctica is best known as the frozen continent.

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.

From a dog's space voyage, to a harrowing story of Arctic survival, to various trips through time; journeys so extraordinary that they are truly unbelievable.

When Andy and Paul head to Northern California to investigate one of Brandon Fugal's most intriguing sites - the notorious energy hotspot of Mt. Shasta; they discover the outrageous lore surrounding the mountain is justified by hard data.

As the team relaunches their investigation on Skinwalker Ranch, they are surrounded by a phenomenon.

Matty Blake returns to the Skinwalker Ranch to review the finds and to get some behind-the-scenes scoops.

Remember when childhood came with a side of danger? Think back to the toys and daredevil playground antics that once defined growing up; uncovering explosive science kits, high-flying kite tubes and more.

As the team relaunches their investigation on Skinwalker Ranch, they are surrounded by a phenomenon.

Matty Blake returns to the Skinwalker Ranch to review the finds and to get some behind-the-scenes scoops.

When Andy and Paul head to Northern California to investigate one of Brandon Fugal's most intriguing sites - the notorious energy hotspot of Mt. Shasta; they discover the outrageous lore surrounding the mountain is justified by hard data.

Isolated along the southernmost part of the planet, Antarctica is best known as the frozen continent.

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.

Remember when childhood came with a side of danger? Think back to the toys and daredevil playground antics that once defined growing up; uncovering explosive science kits, high-flying kite tubes and more.

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.

While demolishing on an old farmhouse, the Priestly team uncovers a hidden historic treasure.

The Salvage team explore the historic mining town of Cobalt where they uncover a trove of memorabilia, including a massive 1915 Woolworth's sign and vintage jukeboxes.

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.

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 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.

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

The junkman makes a much-needed surgical clamp for the 4077th; Klinger throws out Hot Lips' wedding ring.

Remember when childhood came with a side of danger? Think back to the toys and daredevil playground antics that once defined growing up; uncovering explosive science kits, high-flying kite tubes and more.

An argument for the Ancient Astronaut theory is the engineering evident in the construction of ancient megalithic sites worldwide; colossal stones, precise cuts, and fitted blocks at many of these sites hint at the prospect of advanced technology.

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.

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

The junkman makes a much-needed surgical clamp for the 4077th; Klinger throws out Hot Lips' wedding ring.

Remember when childhood came with a side of danger? Think back to the toys and daredevil playground antics that once defined growing up; uncovering explosive science kits, high-flying kite tubes and more.

When Andy and Paul head to Northern California to investigate one of Brandon Fugal's most intriguing sites - the notorious energy hotspot of Mt. Shasta; they discover the outrageous lore surrounding the mountain is justified by hard data.

As the team relaunches their investigation on Skinwalker Ranch, they are surrounded by a phenomenon.

Percy Fawcett becomes obsessed with a lost city deep in the Amazon jungle, a place he names the City of Z; Fawcett vanishes trying to locate it despite numerous missions to find him.

Volcanoes have inspired countless myths and legends, but curiously, they are also major hotspots for UFO sightings; is it possible that these geological formations, which can generate great energy, are attracting otherworldly visitors?

Remember when childhood came with a side of danger? Think back to the toys and daredevil playground antics that once defined growing up; uncovering explosive science kits, high-flying kite tubes and more.

Percy Fawcett becomes obsessed with a lost city deep in the Amazon jungle, a place he names the City of Z; Fawcett vanishes trying to locate it despite numerous missions to find him.

Volcanoes have inspired countless myths and legends, but curiously, they are also major hotspots for UFO sightings; is it possible that these geological formations, which can generate great energy, are attracting otherworldly visitors?

An argument for the Ancient Astronaut theory is the engineering evident in the construction of ancient megalithic sites worldwide; colossal stones, precise cuts, and fitted blocks at many of these sites hint at the prospect of advanced technology.

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.

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

The junkman makes a much-needed surgical clamp for the 4077th; Klinger throws out Hot Lips' wedding ring.

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.

Three generations of Priestly's travel to a remote island to demolish a historic lodge; Ted discovers a surprising collection of valuable 1930's paraphernalia.

Ted and Justin travel to Market Village Mall in Markham, Ontario, where they are tasked with carefully unlocking mysterious vault doors while the demolition team begins tear down.

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

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 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.

Klinger and Father Mulcahy risk their lives to recover stolen medical supplies from a nearby bombed-out school.

Radar borrows Charles' record player and takes over as the M*A*S*H disc jockey.

A strange worm-shaped object is seen in the sky in a video tweeted by a Proof viewer; an ROV finds the remains of a massive skeleton 825 metres below the surface of the Mediterranean; a building appears to shrink as a family gets closer to it.

How the U.S. military convinced the enemy evil spirits were attacking in the Vietnam War; why the Nazis built a giant underground base in WWII; how a man who had never flown a plane stole one of the most powerful military planes.

A Desert Storm fighter pilot goes missing; six WWII pilots fight for survival in the Libyan Desert; a secret U.S. Army unit deceives Nazi forces and helps the Allied cause; veterans Rudy Reyes and Ronnie Adkins analyze the evidence.

The real truth behind the mysterious sinking of an American nuclear submarine and why did the Navy try to cover it up; the design flaws cause a WW2 American bomber aircraft to explode in the Pacific.

Klinger and Father Mulcahy risk their lives to recover stolen medical supplies from a nearby bombed-out school.

Radar borrows Charles' record player and takes over as the M*A*S*H disc jockey.