As the Nazis plot the beginning of their empire, Heinrich Himmler transforms the ruins of a German castle into a mysterious Nazi complex.

When the Nazis took Ksiaz Castle in 1941, it wasn't for the view, and they got to work turning it into a fortress; secret staircases and elevators were built, while underneath, a vast network of tunnels was taking form.

A medieval castle-like complex in the remote mountains of Germany contains dark secrets to the Nazi's plan for world domination; experts investigate and uncover a nefarious training facility designed to groom elite Nazi personnel.

As the Nazis plot the beginning of their empire, Heinrich Himmler transforms the ruins of a German castle into a mysterious Nazi complex.

The skeletal remains of strange structures are clues to a mysterious research installation secretly built by the Nazis in Western Poland; experts investigate and uncover top-secret military fuel development with a catastrophic purpose.

Guided missiles, the Wasserfall, and the potentially war-changing V2 were dreamed up and tested in a base in Peenemunde.

As the Nazis embark on their dominate rise to power, a massive construction project secretly begins across Eastern Germany; using the latest tech, experts uncover an elaborate network of underground tunnels and bunkers with frightening ambitions.

When a Chinese moon rover breaks down, a scientist at NASA points to a mysterious material that seemed to sabotage the Apollo missions decades earlier; the Rosetta spacecraft discovers a comet that appears to be singing.

When NASA discovers something strange on Saturn's biggest moon, experts investigate if aliens feeding on the world's electric atmosphere could be the culprit; the disturbing evidence points to an apocalypse if these monsters ever make it to Earth.

Cosmonauts are trapped in a capsule in a frozen lake; a NASA scientist investigates the Hindenburg; the full moon affects experiments.

The evolution of life on Mars before a series of cataclysmic events transformed the planet from a watery world to a hostile one; scientists believe life will find a way to continue despite the setbacks.

Dark matter is the biggest mystery of the cosmos; scientists know that it has been vital to our universe since its birth, and new discoveries reveal that it could create black holes, cause mass extinctions, and might even shape life on Earth itself.

A thief uses his cunning and a few high-tech gadgets to steal a priceless treasure from a heavily guard palace; bank robbers tunnel underground to hit an impregnable vault; hackers try to steal $440 million from a bank using its own defenses.

A criminal mastermind breaches a bank vault and steals over $100 million in jewels; a simple invention helps thieves make off with over $5 million in gold; when over 500 luxury cars vanish, authorities uncover a high-tech hack worth $30 mil.

A master hacker steals $400 million and eludes capture by the FBI, until the Feds realize he's one of them; millions in drugs are stolen from a super-secure warehouse; criminals run an elaborate scheme to steal a fortune worth of gas in plain sight.

An undercover investigation targets a high-tech North Korean plot to counterfeit American $100 bills; an identity thief uses a clever hacking scheme to steal $100 million; when an ex-KGB agent dies, authorities come across a shocking find.

Inside the science and engineering that helped El Chapo escape from the most guarded prison in Mexico; in just 10 hours, $40 million disappears from ATMs across the planet; a high-tech scheme turns the tables on a casino for a huge payout.

South American drug lords build a fleet of narco subs to carry cocaine to the US; a gambling addict masterminds a bold casino heist.

The wreckages of three German U-boats are eroding at the bottom of the sea along with the stories behind their disastrous fate; now, a team of maritime archaeologists race to locate the submarines and solve the mystery behind their deadly demise.

The enigmatic shipwrecks of El Faro and the Empress of Ireland occurred a century apart and both remain a mystery of the sea; armed with the latest technology, experts explore these doomed ships to discover what set them on the path to catastrophe.

As shipwrecks of World War II continue to erode in the sea, their toxic cargoes continue to pose a catastrophic threat; now, experts use cutting-edge tech to investigate and reveal the potential impact of these noxious underwater dangers.

Countless shipwrecks lost in the depths of the oceans are time capsules containing tales of adventure and tragedy; now, marine experts hunt to locate these forgotten ships, explore their secrets and unlock their incredible stories.

Weapons of mass destruction now include chemical, hypersonic and cyber threats. Like any weapon, cyber attacks can cripple nations, threatening society's survival.

The USS Arizona and the HMS Hood were two of the most powerful warships in history, but their weaknesses paid a fatal price; experts investigate evidence that may reveal why the age of the battleship has come to a sudden and violent end.

The aerial bombardment of the Japanese fleet and the torpedo strike of the Wilhelm Gustloff are two of the most shocking attacks of WWII; expert divers explore these underwater graveyards for new evidence of these maritime conflicts.

Weapons of mass destruction now include chemical, hypersonic and cyber threats. Like any weapon, cyber attacks can cripple nations, threatening society's survival.

The USS Arizona and the HMS Hood were two of the most powerful warships in history, but their weaknesses paid a fatal price; experts investigate evidence that may reveal why the age of the battleship has come to a sudden and violent end.

The aerial bombardment of the Japanese fleet and the torpedo strike of the Wilhelm Gustloff are two of the most shocking attacks of WWII; expert divers explore these underwater graveyards for new evidence of these maritime conflicts.

Countless shipwrecks lost in the depths of the oceans are time capsules containing tales of adventure and tragedy; now, marine experts hunt to locate these forgotten ships, explore their secrets and unlock their incredible stories.

South American drug lords build a fleet of narco subs to carry cocaine to the US; a gambling addict masterminds a bold casino heist.

The wreckages of three German U-boats are eroding at the bottom of the sea along with the stories behind their disastrous fate; now, a team of maritime archaeologists race to locate the submarines and solve the mystery behind their deadly demise.

After NASA's New Horizons spacecraft flies by Pluto, it encounters a strange alien world that shuts down the probe's computers; experts investigate if the mysterious object is an alien spacecraft hiding at the edge of the solar system.

A strange discovery by NASA's Mars Curiosity rover suggests the Red Planet was home to an alien nuclear war 300 million years ago; experts investigate if an extraterrestrial Armageddon transformed an Earth-like world into a wasteland.

Three cosmonauts mysteriously die as they re-enter Earth's atmosphere and NASA needs to know why; a declassified document shows a CIA plan to use a space disaster as a cover to start World War 3.

The universe is a dangerous place; exploring the deadliest spots in the cosmos; between earth and the edge of the universe, there are a million ways to die; a crash test dummy is on a mission.

Exploring the real-life death stars in the cosmos that could snuff out Earth without much effort; the science of the destructive power behind six of the deadliest stars; vampire stars, supernovas and rogue stars.

Some believe the fire on Apollo One that killed three astronauts was a top-secret cover-up, and a team of experts investigate if this disaster was a tragic accident or part of a conspiracy to fake the moon landing.

A team of experts investigates if there was a conspiracy to fake the moon landing, and uncovers a secret report on hundreds of Nazis involved in the Apollo space program.

Confidential CIA files reveal a top-secret war for space between the US and the Soviets, and a team of experts investigate if new discoveries about American espionage during the Apollo program provide evidence of a conspiracy.

Apollo 11's lunar module nearly killed Neil Armstrong during training, and some believe this close-call could explain a conspiracy to fake the moon landing; investigating if dangers that the Apollo 11 crew faced were motive for a cover-up.

The NASA tapes that recorded the Apollo 11 moon landing are missing, and some believe their disappearance is part of a cover-up to hide the truth; experts use cutting-edge tech to hunt for this lost evidence and shed light on a possible conspiracy.

Some believe that the moon's waving American flag is the smoking gun that NASA faked the moon landing, and as a team of experts investigate this strange piece of evidence, the trail leads all the way to some of Hollywood's biggest names.

A railroad bridge on the edge of disaster, a nightmare in a fairy-tale town, and a massive cathedral in calamity are engineering catastrophes in need of repair; experts use cutting-edge technology to reveal if they can be fixed.

A devastating rail disaster outside a small North Dakota town results in cargo erupting in massive explosions; experts use the latest science to investigate and uncover an engineering flaw poised for catastrophic failure.

A deadly design flaw results in a horrifying rush hour bridge collapse that tragically leaves 13 dead in Minneapolis; using the latest science, experts investigate to reveal what went so catastrophically wrong on one of Minnesota's busiest crossings.

Construction turns catastrophic in New Orleans when the side of a hotel complex collapses on a busy street below; expert engineers investigate to uncover the reason behind this sudden and fatal disaster.

Tornadoes are violent, rotating columns of air that can level buildings, their unpredictability makes them even more destructive; a look at how tornadoes form and if they can be stopped.

Tragedy strikes a bustling Canadian shopping mall when a parking garage suddenly collapses resulting in a fatal disaster; expert engineers use the latest technology to investigate and uncover a deadly design flaw that could have been prevented.

Experts look at engineering blunders that have either caused catastrophes or are disasters waiting to happen; they use cutting-edge technology to examine what went wrong and to figure out if they can be fixed.

Tornadoes are violent, rotating columns of air that can level buildings, their unpredictability makes them even more destructive; a look at how tornadoes form and if they can be stopped.

Tragedy strikes a bustling Canadian shopping mall when a parking garage suddenly collapses resulting in a fatal disaster; expert engineers use the latest technology to investigate and uncover a deadly design flaw that could have been prevented.

Experts look at engineering blunders that have either caused catastrophes or are disasters waiting to happen; they use cutting-edge technology to examine what went wrong and to figure out if they can be fixed.

Construction turns catastrophic in New Orleans when the side of a hotel complex collapses on a busy street below; expert engineers investigate to uncover the reason behind this sudden and fatal disaster.

Some believe that the moon's waving American flag is the smoking gun that NASA faked the moon landing, and as a team of experts investigate this strange piece of evidence, the trail leads all the way to some of Hollywood's biggest names.

A railroad bridge on the edge of disaster, a nightmare in a fairy-tale town, and a massive cathedral in calamity are engineering catastrophes in need of repair; experts use cutting-edge technology to reveal if they can be fixed.

When NASA begins a strange experiment to communicate with dolphins, experts investigate if it's a prelude to making alien contact; some fear that such a discovery could have apocalyptic consequences.

Tornadoes are violent, rotating columns of air that can level buildings, their unpredictability makes them even more destructive; a look at how tornadoes form and if they can be stopped.

After Neil Armstrong's moonwalk, he leads an expedition into the Amazon to find a legendary library that holds all knowledge of an advanced alien civilization; experts ask if a close encounter on the moon's surface inspired Armstrong's quest.

Tragedy strikes a bustling Canadian shopping mall when a parking garage suddenly collapses resulting in a fatal disaster; expert engineers use the latest technology to investigate and uncover a deadly design flaw that could have been prevented.

Two astronauts trapped in the vacuum of space face a horrible death; the first close up images of Pluto show an alien landscape; residents of Houston struggle to explain videos of unidentified flying lights captured above their city at night.

Experts look at engineering blunders that have either caused catastrophes or are disasters waiting to happen; they use cutting-edge technology to examine what went wrong and to figure out if they can be fixed.

Scientists have discovered a mysterious ninth planet ten times the size of Earth on the very edge of the solar system; this strange world could have moons with extraterrestrial life.

Construction turns catastrophic in New Orleans when the side of a hotel complex collapses on a busy street below; expert engineers investigate to uncover the reason behind this sudden and fatal disaster.

The first close-up images of Pluto reveal secrets; scientists investigate if Pluto is home to a warm ocean of liquid water beneath its surface and whether this underground ocean could harbor life.

Some believe that the moon's waving American flag is the smoking gun that NASA faked the moon landing, and as a team of experts investigate this strange piece of evidence, the trail leads all the way to some of Hollywood's biggest names.

In 2013, the USS Jimmy Carter deployed on a classified mission that received a presidential citation of heroism.

A railroad bridge on the edge of disaster, a nightmare in a fairy-tale town, and a massive cathedral in calamity are engineering catastrophes in need of repair; experts use cutting-edge technology to reveal if they can be fixed.

Many U.S. government personnel have reported sustaining unexplained and debilitating neurological injuries while working abroad; Mike Baker investigates if these invisible, mind-altering attacks are evidence of active mind-control programs worldwide.

When NASA begins a strange experiment to communicate with dolphins, experts investigate if it's a prelude to making alien contact; some fear that such a discovery could have apocalyptic consequences.

Presidential Emergency Action Documents have the potential to grant the U.S. president unlimited authority; Mike Baker investigates how these files are among the most secretive documents in U.S. government and what might trigger their use.

After Neil Armstrong's moonwalk, he leads an expedition into the Amazon to find a legendary library that holds all knowledge of an advanced alien civilization; experts ask if a close encounter on the moon's surface inspired Armstrong's quest.

In the aftermath of the 9/11 attacks, a series of secret meetings were reported between US military brass and Hollywood filmmakers.

Two astronauts trapped in the vacuum of space face a horrible death; the first close up images of Pluto show an alien landscape; residents of Houston struggle to explain videos of unidentified flying lights captured above their city at night.

Unidentified black triangles have been reported in flight over top-secret military bases for decades, and now, Mike Baker investigates if the US government is involved in developing experimental aircraft, or if this could be something otherworldly.

Scientists have discovered a mysterious ninth planet ten times the size of Earth on the very edge of the solar system; this strange world could have moons with extraterrestrial life.

Former CIA operative Mike Baker investigates top-secret government programs steeped in cutting-edge science; Mike speaks with experts, government officials and scientists to go deeper into the black files than ever before.

The first close-up images of Pluto reveal secrets; scientists investigate if Pluto is home to a warm ocean of liquid water beneath its surface and whether this underground ocean could harbor life.

Uncovered documents reveal a black file containing studies of werewolves, sprites and floating orbs; Mike Baker investigates how the U.S. government may have funded a classified program directly focused on the research of paranormal phenomena.

At an infamous prison in the Amazon, dangerous criminals faced hard labor, a hostile environment and death by guillotine; today, it's deserted and new discoveries reveal why this hellish compound was built and abandoned.

Many U.S. government personnel have reported sustaining unexplained and debilitating neurological injuries while working abroad; Mike Baker investigates if these invisible, mind-altering attacks are evidence of active mind-control programs worldwide.

A haunted prison that once housed America's most notorious criminals stands in ruin today, and experts reveal evidence of ghostly secrets hidden in the crumbling jailhouse walls.

Presidential Emergency Action Documents have the potential to grant the U.S. president unlimited authority; Mike Baker investigates how these files are among the most secretive documents in U.S. government and what might trigger their use.

A mysterious town in South Africa is deserted, even though it was once a booming community; experts reveal the cataclysm that caused the people of this once-prosperous town to suddenly leave and never come back.

In the aftermath of the 9/11 attacks, a series of secret meetings were reported between US military brass and Hollywood filmmakers.

A one-time fairytale castle is rumored to be haunted; experts investigate the secrets and ghostly stories of this eerie fortress.

Unidentified black triangles have been reported in flight over top-secret military bases for decades, and now, Mike Baker investigates if the US government is involved in developing experimental aircraft, or if this could be something otherworldly.

An abandoned town in the Nevada desert is the ruins of an American Atlantis, destroyed by catastrophic floods when the Hoover Dam was built; experts investigate the secrets of this eerie ghost town as water levels recede and the city reemerges.

Former CIA operative Mike Baker investigates top-secret government programs steeped in cutting-edge science; Mike speaks with experts, government officials and scientists to go deeper into the black files than ever before.

Abandoned buildings on a desolate island near Greece provide evidence of a group of people who were forbidden to leave.

Uncovered documents reveal a black file containing studies of werewolves, sprites and floating orbs; Mike Baker investigates how the U.S. government may have funded a classified program directly focused on the research of paranormal phenomena.

A one-time fairytale castle is rumored to be haunted; experts investigate the secrets and ghostly stories of this eerie fortress.

An abandoned town in the Nevada desert is the ruins of an American Atlantis, destroyed by catastrophic floods when the Hoover Dam was built; experts investigate the secrets of this eerie ghost town as water levels recede and the city reemerges.

Abandoned buildings on a desolate island near Greece provide evidence of a group of people who were forbidden to leave.

A mysterious town in South Africa is deserted, even though it was once a booming community; experts reveal the cataclysm that caused the people of this once-prosperous town to suddenly leave and never come back.

Former CIA operative Mike Baker investigates top-secret government programs steeped in cutting-edge science; Mike speaks with experts, government officials and scientists to go deeper into the black files than ever before.

An abandoned town in the Nevada desert is the ruins of an American Atlantis, destroyed by catastrophic floods when the Hoover Dam was built; experts investigate the secrets of this eerie ghost town as water levels recede and the city reemerges.

Uncovered documents reveal a black file containing studies of werewolves, sprites and floating orbs; Mike Baker investigates how the U.S. government may have funded a classified program directly focused on the research of paranormal phenomena.

When astronomers discover a rogue black hole speeding through the Milky Way, they investigate how much danger this cosmic monster poses to Earth, and what would happen if it ever entered our solar system.

A NASA astronaut reports seeing a flying saucer in the skies above a U.S. Air Force test range; how the swirling gases of Saturn have formed a perfect hexagon that has hovered above the planet's pole for 30 years.

Recently discovered documents show NASA's secret plan B for failure of the first moon landing; a Soyuz capsule carrying NASA astronaut Peggy Whitson back to Earth goes missing; NASA's Cassini mission unravels a three hundred year old.

Discovering how life on Earth came to be; the possibility that life on Earth come from another planet.

For years, scientists suspected that the oceans came from molecules delivered to Earth from distant stars by asteroids, but a new discovery suggests that their true origins may be more exotic.

Investigating rumors of a secret underground escape route used by the infamous gangster Al Capone; trying to uncover who or what built a vast landscape of earthen mounds in Washington state.

Examining a set of bizarre markings that suggest a violent clash between prehistoric beasts; in California, Rob investigates to see if a strange lake is a home to alien life.

Rob Nelson investigates the mysterious pattern of rocks at the bottom of Lake Michigan known as Underwater Stonehenge; at the notorious Alcatraz prison, Rob uses state-of-the-art technology in search of rumored escape tunnels.

Hunting for a legendary mass grave that could expose a dark secret of America's industrial past; using cutting-edge technology to find out why a giant lake is mysteriously disappearing high in the mountains.

Exploring mysterious tunnels beneath Denver's airport, capitol building and downtown to investigate rumors of a secret organization that operates below; in Ohio, trying to uncover the ancient secrets of a giant mound shaped like a serpent.

Investigating a cluster of ancient ruins in New England that suggest Europeans arrived in the Americas almost 1,000 years before Columbus; heading to California where a dormant super volcano may be showing new signs of life.

Heading to California to investigate a network for major fault lines that could set off an unprecedented mega-quake; he explores a mysterious sinkhole that some believe is an endless pit to the center of the Earth.

Satellite images capture bizarre structures fenced within a remote mountaintop complex on the Greek island of Kefalonia; experts investigate and discover a network of massive satellites linked to a hidden NATO doomsday communications bunker.

Satellite images capture dozens of perfectly straight parallel lines hidden in the dense Polish woodlands; experts investigate and uncover a massive WWII military complex once used as a notorious and deadly Nazi weapons training facility.

Satellite images capture a bizarre industrial complex in the remote desert expanse of Kazakhstan; experts investigate and uncover a massive hangar containing the most expensive spacecraft in the history of Soviet-era space exploration.

Satellite images capture monumental ruins surrounded by bizarre feather-shaped structures on a Welsh mountaintop; experts investigate a hidden tunnel containing the remains of an abandoned slate mine with an exploitative and deadly past.

Satellite images capture a triangular castle-like tower located on the Mediterranean island of Sardinia; experts investigate the relics of a declining ancient civilization that may have suffered a celestial catastrophe.

Satellite images capture two conjoined circular structures embedded in the landscape of Ireland; experts investigate an ancient site linked to legendary figures and the elusive hunt for the Ark of the Covenant.

Satellite images capture monumental ruins surrounded by bizarre feather-shaped structures on a Welsh mountaintop; experts investigate a hidden tunnel containing the remains of an abandoned slate mine with an exploitative and deadly past.

Satellite images capture a triangular castle-like tower located on the Mediterranean island of Sardinia; experts investigate the relics of a declining ancient civilization that may have suffered a celestial catastrophe.

Satellite images capture two conjoined circular structures embedded in the landscape of Ireland; experts investigate an ancient site linked to legendary figures and the elusive hunt for the Ark of the Covenant.

Satellite images capture a bizarre industrial complex in the remote desert expanse of Kazakhstan; experts investigate and uncover a massive hangar containing the most expensive spacecraft in the history of Soviet-era space exploration.

Investigating a cluster of ancient ruins in New England that suggest Europeans arrived in the Americas almost 1,000 years before Columbus; heading to California where a dormant super volcano may be showing new signs of life.

Heading to California to investigate a network for major fault lines that could set off an unprecedented mega-quake; he explores a mysterious sinkhole that some believe is an endless pit to the center of the Earth.

Investigating the possibility of a Civil War steam-powered short-range missile.

An accident fuses compact trucks; vodka's impact on personal hygiene.

Adam and Jamie test whether steel-toe boots are more effective than normal boots; they attempt a bottle rocket stunt.

No one knows how Harry Houdini pulled off his death-defying escapes, but, now, a team of experts investigate his water torture illusion to reveal the secrets of this mysterious feat.

The bullet catch is one of the deadliest tricks in magic history, and no one knows if Houdini pulled off the illusion; a team of experts re-creates the famed trick to uncover how Houdini could have pulled off the feat that killed many of his peers.

One of Houdini's greatest escapes might have been a deep-cover conspiracy to spy for the American government, and experts recreate his break from a Siberian prison transport to investigate the mysteries behind this incredible feat.

Houdini's mysterious sudden death might not have been an accident, and experts re-create his buried alive escape to reveal how this deadly feat was performed and if the great magician was killed by forces far more insidious.

A new lead may finally solve the mystery of the Witchcraft, a yacht that disappeared in the Bermuda Triangle in 1967; a cutting-edge expedition leads experts to a surprising discovery on the ocean floor.

Sightings of ghost ships are normal in the Bermuda Triangle and using underwater technology and witness testimony, a team of experts find new evidence to tell why sailors and crewmen vanish from their ships without a trace.

When a credible witness claims to have discovered the wreckage of a long-lost ship, experts launch an investigation to positively identify the missing vessel and uncover how it could be more than 10 miles from where it reportedly sank.

Brand-new discoveries may finally explain the truth behind one of the Bermuda Triangle's most infamous disappearances.

Five US Navy planes vanish without a trace in the Bermuda Triangle, fueling speculation that this strange stretch of water is cursed.

Experts are hot on the trail of a legendary sea monster that reportedly lives in the underwater caves of the Bermuda Triangle; divers hunt for the deadly beast in underwater chambers.

New evidence could finally explain a mysterious UFO encounter in the Bermuda Triangle, and using cutting-edge tech and the latest underwater discoveries, a team of experts investigate if aliens have visited this strange stretch of water.

To find the truth behind unexplained phenomena, experts follow new clues to underwater alien anomalies that some believe have ties to the lost city of Atlantis.

El Dorado, the legendary city of gold, captivated Europeans in the 16th and 17th centuries, sparking endless quests for hidden treasures; fueled by greed, these expeditions led to the loss of countless lives.

Experts use the latest forensic archaeology to investigate the true story behind the disappearance of more than 100 English colonists who settled on Roanoke Island in 1587.

El Dorado, the legendary city of gold, captivated Europeans in the 16th and 17th centuries, sparking endless quests for hidden treasures; fueled by greed, these expeditions led to the loss of countless lives.

Experts use the latest forensic archaeology to investigate the true story behind the disappearance of more than 100 English colonists who settled on Roanoke Island in 1587.

To find the truth behind unexplained phenomena, experts follow new clues to underwater alien anomalies that some believe have ties to the lost city of Atlantis.

Brand-new discoveries may finally explain the truth behind one of the Bermuda Triangle's most infamous disappearances.