When a mysterious predator eats a shark, experts wonder if a prehistoric monster is to blame; a sinister sight is caught on tape near Russia's Area 51 and the evidence might point to a cover-up.

Despite bans, dangerous chemical weapons are still used by certain regimes. Explore how these weapons are used and how they can possibly contribute to the threat of future biological warfare.

A ghostly figure is caught on tape stalking people in Japan, providing evidence for the truth of a local legend; a mysterious flame appears in the Norwegian wilderness with the fury of the Viking god, Thor.

When a mysterious predator eats a shark, experts wonder if a prehistoric monster is to blame; a sinister sight is caught on tape near Russia's Area 51 and the evidence might point to a cover-up.

A strange creature similar to the Loch Ness Monster is spotted in the United States; experts analyze evidence of a giant scaly egg, and some wonder if it belongs to a dragon; birds are suddenly vaporized by an invisible death ray.

In 1953, a team of archaeologists uncover a bizarre, plastered human skull in the ancient city of Jericho; experts investigate the mysterious purpose and identity behind this 9,000-year-old clay-covered artifact.

Investigating whether a machine can read personalities; an ancient golden mask painted with human blood; a cursed chicken pot.

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.

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.

Astronaut Leroy Chiao's spacewalk is interrupted by bright lights flying past; a flying saucer is photographed from the Apollo.

Experts utilize the latest science and discoveries to investigate the cause of the Milky Way galaxy's gradual death.

Our solar system is home to hundreds of strange, tiny worlds called dwarf planets, and new discoveries reveal the secrets of these mysterious places.

The Great Wall of China is one of the world's greatest engineering marvels, and it took dangerous, cutting-edge construction to build it; experts use the latest tech and modern-day science to reveal if building it a second time would be as deadly.

According to the Bible, Noah's Ark was a world-changing engineering feat, and it took cutting-edge construction to build it; experts use the latest tech and modern-day science to reveal if building it a second time would be just as difficult.

New York's Brooklyn Bridge might be the most important bridge in the world, and it took dangerous, cutting-edge engineering to built it; experts use the latest tech and modern-day science to reveal if building it a second time would be as deadly.

Rome's Pantheon hides the secret to the Roman Empire's power, and it took dangerous, cutting-edge engineering to build it. Experts use the latest tech and modern-day science to reveal if building it a second time would be just as deadly.

Egypt's Great Pyramid is one of the world's greatest and most mysterious marvels, and using cutting-edge tech and the latest engineering innovations, experts reveal what it would take to build the ancient wonder today.

Rome's Colosseum is the most famous stadium on the planet, and it took cutting-edge engineering and a fallen emperor to build it; experts use the latest tech and modern-day science to reveal if building it a second time would be just as difficult.

As floodwaters unleash havoc in Venice, Italy, experts use the latest technology and modern-day science to explore the feasibility of rebuilding it.

When a new bridge suddenly collapses in Miami, several die in a horrifying calamity; experts use the latest science to investigate what went wrong and how an innovative bridge-building technique could be to blame.

An oil rig in a Louisiana lake drills in the wrong place and causes a massive whirlpool that drains the entire lake; exploring why this sinkhole disaster was one of the greatest engineering catastrophes in American history.

Tragedy strikes in Puerto Rico as an explosion takes down a popular shoe shop.

Archive footage and cutting-edge CGI is used to explore global disasters, illustrating the full toll these events can take and giving an understanding on how and why they occur.

An explosion at a chemical plant in New Jersey kills five workers and unleashes a torrent of black smoke into the morning sky; an investigation reveals how a small amount of water led to this fatal manufacturing catastrophe.

There's shock in the Bronx, as a vast sinkhole swallows a van.

Archive footage and cutting-edge CGI is used to explore global disasters, illustrating the full toll these events can take and giving an understanding on how and why they occur.

An explosion at a chemical plant in New Jersey kills five workers and unleashes a torrent of black smoke into the morning sky; an investigation reveals how a small amount of water led to this fatal manufacturing catastrophe.

There's shock in the Bronx, as a vast sinkhole swallows a van.

Tragedy strikes in Puerto Rico as an explosion takes down a popular shoe shop.

Rome's Colosseum is the most famous stadium on the planet, and it took cutting-edge engineering and a fallen emperor to build it; experts use the latest tech and modern-day science to reveal if building it a second time would be just as difficult.

As floodwaters unleash havoc in Venice, Italy, experts use the latest technology and modern-day science to explore the feasibility of rebuilding it.

A mars mission captures an image of a strange structure on the planet; an intriguing sight on the dark side of the moon; a planet-eating star gives scientists a peek of Earth's bleak future.

Experts investigate if a nearby exoplanet could be the home to an alien civilization of strange, metallic monsters, after a new discovery confirms that life can thrive on such a strange world.

A piece of the sun seems to have vanished; the Hubble spots an unidentified object traveling faster than light.

An explosion in the discovery of exoplanets is challenging everything we know about our universe; experts use cutting-edge astronomy to investigate these mysterious alien worlds and how they defy the laws of physics.

A brand-new NASA mission to the sun reveals cutting-edge discoveries about Earth's star; as the Parker Solar Probe dives through the sun's atmosphere, its findings challenge everything known about this strange place.

Jeremy Wade takes a fresh look at the Battle of Actium; Jeremy investigates what could be the first recorded case of a whale rescuing a human.

Exploring the puzzling disappearance of an Indonesian submarine; the latest research into an underwater phenomenon may help piece together how it vanished.

Jeremy Wade explores the hidden and dark secrets behind a 150-year-old shipwreck off the coast of Sisal, Mexico, revealing an unknown and troubling maritime past. Also, a mysterious boiling river hidden deep in the heart of the Amazon is uncovered.

Jeremy Wade explores a shipwreck that may contain stolen Nazi treasure, the priceless lost furnishings of the 18th century Amber Room; astonishing footage captures the exact moment when freight ship MV Arvin split in two and sank in the Black Sea.

Jeremy Wade explores an accident involving a Russian nuclear submarine on a top-secret mission, and shocking details emerge surrounding the vessel's design; scientists investigate ancient human remains emerging from a lake in Finland.

Jeremy Wade investigates the infamous shipwreck of the Titanic; locals are baffled when a bag containing 54 severed human hands is found on the banks of a Siberian river.

In modern-day Turkey, on the coast of the Aegean Sea, archaeologists discovered hilltop ruins that are believed to be the site of one of the world's most enduring stories -- the legend of Troy and the Trojan Horse.

Formerly known as one of the toughest prisons in America, this massive complex was once home to medical experiments and a chaotic hostage situation; it's better remembered as the setting for the iconic opening scene of.

This decaying fortress once stood between the Ancient Roman and Persian Empires; though the stronghold's location attracted great wealth, it also attracted attention from unfriendly neighbors.

In the Turkish capital, ambitious plans for a new amusement park are disrupted by financial, mechanical and political problems, forcing the park to close; now its old roller coasters stand as symbols of excess on the city skyline.

This Caribbean mecca for rock legends was envisioned by famous Beatles producer George Martin; although many legendary records were made there, the studio had to close after a series of natural disasters rocked the small island.

This Seoul amusement park is full of rusted-out rides and unfinished renovations; forced to close due to financial problems, the park has found a second life after being used as the setting of K-pop album covers and music videos.

A teenage girl in Korea is martyred in prison and becomes a national hero; the facility where she was held stands in remembrance of her bravery and the Korean struggle for independence.

This Caribbean mecca for rock legends was envisioned by famous Beatles producer George Martin; although many legendary records were made there, the studio had to close after a series of natural disasters rocked the small island.

This Seoul amusement park is full of rusted-out rides and unfinished renovations; forced to close due to financial problems, the park has found a second life after being used as the setting of K-pop album covers and music videos.

A teenage girl in Korea is martyred in prison and becomes a national hero; the facility where she was held stands in remembrance of her bravery and the Korean struggle for independence.

In the Turkish capital, ambitious plans for a new amusement park are disrupted by financial, mechanical and political problems, forcing the park to close; now its old roller coasters stand as symbols of excess on the city skyline.

Jeremy Wade investigates the infamous shipwreck of the Titanic; locals are baffled when a bag containing 54 severed human hands is found on the banks of a Siberian river.

In modern-day Turkey, on the coast of the Aegean Sea, archaeologists discovered hilltop ruins that are believed to be the site of one of the world's most enduring stories -- the legend of Troy and the Trojan Horse.

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

Astronomers notice a planet in Earth's vicinity capable of supporting life; top secret military program exposed; the moon contains the components to start life.

Spaceships powered by atomic bombs; artificial rings encircle an entire star; Neil Armstrong's transmission feed cuts off when he spots strange lights on the moon; how can lightning talk to itself.

Quasars are the brightest and most powerful objects in the universe, and though they have shaped the cosmos, they might ultimately destroy everything that exists.

Cosmologists say there are black holes throughout the Universe, but they've never seen one and it's almost impossible to study them directly.

A massive supervolcano beneath Naples, Italy, may be on the verge of erupting again, which could have apocalyptic consequences across the planet; Rob Nelson and Stefan Burns use cutting-edge technology to investigate this disturbing new evidence.

New theories claim that the legendary sunken city of Atlantis actually could have been in the Americas; Rob Nelson and Stefan Burns investigate evidence that might shed more light on one of the world's greatest mysteries.

A legendary train filled with stolen Nazi gold is said to be hidden in Poland; using cutting-edge technology, Rob Nelson and Stefan Burns explore deep underneath the earth's surface and in abandoned Nazi tunnels in search of the infamous legend.

When an infamous pirate city sunk into the sea after a massive earthquake, a wealthy pirate's treasure may have disappeared with it; a hunt for the legendary lost pirate treasure of Henry Morgan.

Millions of dollars of stolen Gold Rush treasure is rumored to have been stashed in a cave in Northern California; the search for the legendary treasure.

Searching for the fabled lost Temple Treasures of Jerusalem and King Solomon's hidden mines.

A strange cave freezes in the summer and melts in the winter; a massive sand dune swallows a small child in an instant.

NASA astronaut Mike Barratt explains photographing a strange ring in the ice on the world's oldest and most mysterious lake from the International Space Station; more rings on Lake Baikal have been seen.

A possible smoke screen over North Korea concerns military analysts; an amateur archaeologist makes a fantastic discovery of not one but two forgotten pyramids in Egypt.

Images of earth from space show an intimate portrait of human activity; cities glow bright while the wilderness remains dark, but the Australian outback is lit up like a series of vast cities.

A massive tsunami hundreds of feet high that never touches land; a secret underground base in China; an image from space may have revealed the location of the Garden of Eden.

Strange barren rings in the Namib Desert; an island the size of Manhattan disappears without trace; a lost city in the middle of the Amazonian jungle.

How the Eye of the Sahara, a beautiful 25 mile structure, is formed remains a mystery; incredible clouds emanating from an island in the Indian Ocean could be evidence of a terrifying new weather weapon.

A massive tsunami hundreds of feet high that never touches land; a secret underground base in China; an image from space may have revealed the location of the Garden of Eden.

Strange barren rings in the Namib Desert; an island the size of Manhattan disappears without trace; a lost city in the middle of the Amazonian jungle.

How the Eye of the Sahara, a beautiful 25 mile structure, is formed remains a mystery; incredible clouds emanating from an island in the Indian Ocean could be evidence of a terrifying new weather weapon.

Images of earth from space show an intimate portrait of human activity; cities glow bright while the wilderness remains dark, but the Australian outback is lit up like a series of vast cities.

Searching for the fabled lost Temple Treasures of Jerusalem and King Solomon's hidden mines.

A strange cave freezes in the summer and melts in the winter; a massive sand dune swallows a small child in an instant.

Testing heights; bobbing for an apple when jumping with a bungee cord; playing tennis upon an airplane wing.

Swinging Luke and Leia across a chasm with a grappling hook; an Ewok log crushing an Imperial.

Adam and Jamie challenge the science of virtual worlds from video games.

Two.

George sends Greg to the World of Creation to learn more about traditional canning methods, which blend timeless craftsmanship with cutting-edge innovations to safeguard tomorrow's harvests.

Cheese graters; hot sauce; silver jewelry; traditional Mexican chairs.

An unearthly presence at a nuclear launch site in Cyprus visits a UN peacekeeper and helps him fight off a deadly enemy.

A Russian Infantryman fights an unknown presence in a Chechnyan forest.

U.N. Peacekeeper develops a mysterious power to fight off a deadly foe.

A Russian soldier describes being lured into a swamp by an unnatural entity; an Ohio military base with a UFO connection; an interview with a US Air Force colonel whose alien-craft sightings are finally confirmed.

An Infantryman encounters an otherworldly presence on a training mission.

An intelligence analyst on a secret mission makes an unearthly discovery.

A Navy seaman experiences strange events in the heart of the Bermuda Triangle; an Air Force Staff Sergeant is confronted by an otherworldly being in Iraq; a tech sergeant discovers a haunting visitor in her air base house.

New discoveries reveal the treasures of a ghost fleet of Japanese ships at the bottom of the South Pacific, and using cutting-edge underwater technology, experts investigate a top-secret superweapon that could have changed the course of World War II.

The disappearance of the SS Cotopaxi helped launch the legend of the Bermuda Triangle; today, a team of experts follow fresh leads with cutting-edge tech to investigate if a mysterious wreck off the coast of Florida is indeed the long-lost ship.

When a sister ship of the Titanic gets embroiled in war with a hidden enemy, the former luxury liner is sent to the bottom of the ocean; new discoveries and cutting-edge underwater technology might finally reveal the secret history of its sinking.

The mystery of Noah's Ark, believed to rest in the snow-covered Ararat Mountains, has fascinated explorers for years. Two separate expeditions claim to have found it in different locations, sparking debates on whether the story is myth or reality.

A cutting edge investigation into an deep-sea graveyard of 25 shipwrecks reveals the dark secrets of the biggest naval battle in history, and using the latest tech, experts follow new evidence into the mysterious abyss of long lost battleships.

A mysterious shipwreck at the bottom of Lake Erie could be the oldest wreck in America's most notorious ship graveyard, and using cutting-edge underwater archaeological methods, experts investigate new leads in this 200-year-old cold case.

The mystery of Noah's Ark, believed to rest in the snow-covered Ararat Mountains, has fascinated explorers for years. Two separate expeditions claim to have found it in different locations, sparking debates on whether the story is myth or reality.

A cutting edge investigation into an deep-sea graveyard of 25 shipwrecks reveals the dark secrets of the biggest naval battle in history, and using the latest tech, experts follow new evidence into the mysterious abyss of long lost battleships.

A mysterious shipwreck at the bottom of Lake Erie could be the oldest wreck in America's most notorious ship graveyard, and using cutting-edge underwater archaeological methods, experts investigate new leads in this 200-year-old cold case.

When a sister ship of the Titanic gets embroiled in war with a hidden enemy, the former luxury liner is sent to the bottom of the ocean; new discoveries and cutting-edge underwater technology might finally reveal the secret history of its sinking.

An intelligence analyst on a secret mission makes an unearthly discovery.

A Navy seaman experiences strange events in the heart of the Bermuda Triangle; an Air Force Staff Sergeant is confronted by an otherworldly being in Iraq; a tech sergeant discovers a haunting visitor in her air base house.

Testing household myths; exploding a vacuum cleaner with black powder; sunscreen scorching skin; piano through a roof; exploding water heater extinguishing fire.

Explosive scenarios from Hollywood; shooting a live grenade in midair; containing an explosion within an ordinary object.

Adam and Jamie, along with Al Jean, the executive producer of "The Simpsons," test occurrences from the show.

Grammy Awards; bicycle lights; above-ground pools; foldable solar panels.

LED stage lights; apple cider; chemical tank trailers; ornate stone floors.

Fishing line; industrial mixers; natural baking soda; tow trucks.

Storage sheds; industrial fans; parchment paper; climbing walls.

Aerospace fasteners; cactus pear puree; lab reactors.

Wall beds; sundae cups; digital paintings; badminton rackets.

Hammers; Swiss cheese; roller skates; colored pencils.

Carbon fiber bicycles; blood products; forged chandeliers; ballpoint pens.

Microphones; hot tubs; artificial turf; beer steins.

Hot rods; decorative eggs; fire hose nozzles; baseballs.

Accordions; pineapples; artificial joints.

Giant valves; sardines; barographs; disposable diapers.

The downfall of the powerful Maya city of Palenque continues to mystify archaeologists today; now, investigators gain rare access to explore lost tombs to reveal the truth behind this legendary city and the mystery behind its enigmatic queens.

A colossal stone temple on a remote Egyptian island mysteriously bears the names of the most famous leaders of the ancient world; now, experts use cutting-edge tech to investigate why pharaohs and emperors all built monuments at this enigmatic site.

The ancient city of Samarra contains a series of medieval structures that hold secrets to one of the world's greatest empires; archaeologists use pioneering technology to investigate its astonishing rise to power and reveal its monumental downfall.

The sacred city of Nippur and the world's only ziggurat contain elusive mysteries to the ancient Sumerian people; now, archaeologists armed with pioneering tech are on a quest to reveal the secrets behind the earliest known civilization in history.

The coliseums of Rome were brutal theaters of spectacle and death that helped control the sprawling Roman empire; now, archaeologists uncover the engineering secrets behind these majestic structures to reveal the truth behind the ancient Roman world.

Archaeological finds may suggest that the legendary city actually existed.

Julius Caesar's relentless pursuit of power positioned him against a mighty rebel force that fought the infamous Roman general at his own game; now, archaeologists investigate the truth behind key moments that took Caesar to the brink of defeat.

New discoveries might lead investigators to the legendary group of 300 Spartan warriors who died fighting off one million invading Persians, and using cutting-edge tech, experts reconstruct the battlefield to uncover the secrets of their last stand.

Julius Caesar's relentless pursuit of power positioned him against a mighty rebel force that fought the infamous Roman general at his own game; now, archaeologists investigate the truth behind key moments that took Caesar to the brink of defeat.

New discoveries might lead investigators to the legendary group of 300 Spartan warriors who died fighting off one million invading Persians, and using cutting-edge tech, experts reconstruct the battlefield to uncover the secrets of their last stand.

Archaeological finds may suggest that the legendary city actually existed.

A colossal stone temple on a remote Egyptian island mysteriously bears the names of the most famous leaders of the ancient world; now, experts use cutting-edge tech to investigate why pharaohs and emperors all built monuments at this enigmatic site.

The ancient city of Samarra contains a series of medieval structures that hold secrets to one of the world's greatest empires; archaeologists use pioneering technology to investigate its astonishing rise to power and reveal its monumental downfall.

Neil Armstrong enters an unexplained spin; an Apollo 17 photo seems to show a US military outpost on the Moon; possible alien life swimming in the oceans of Jupiter's moons.

Experts investigate if a nearby exoplanet could be the home to an alien civilization of strange, metallic monsters, after a new discovery confirms that life can thrive on such a strange world.

When the Soviet Union unveils its own space shuttle, the CIA hatches a secret revenge plot; recent discoveries shed new light on the destruction of Sodom and Gomorrah; a missing nuclear weapon could threaten a NASA base in the Arctic.

Discoveries of new planets have revealed countless worlds much stranger than Earth; some of these strange worlds don't have stars and others are made out of diamonds.

Recent evidence could explain how supermassive black holes grow so big; neither dark matter nor cannibalism can fully explain these beasts, but the latest science may finally provide an answer.

Victor Vescovo's team searches for the deepest point of the Atlantic Ocean.

Victor Vescovo's team searches for the deepest point of the Southern Ocean.

Victor Vescovo and his team head to the Indian Ocean.

Victor Vescovo's team takes on the Mariana Trench in the Pacific Ocean.

Victor Vescovo's team concludes its mission in the Arctic Ocean.

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.

Experts uncover a mysteriously abandoned underground complex that may have hid something very dark.

A labyrinth of tunnels carved deep in the Polish mountains leads to the largest underground Nazi weapons development complex ever discovered.

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.

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.

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.

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.

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.

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.

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.

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

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.

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.

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

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.

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.

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.

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.

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.

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 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.