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.

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

Curing seasickness; the economic benefits of driving a truck with the tailgate down.

Adam and Jamie try to make a deadly weapon out of newspaper and underwear. Hosts: Jamie Hyneman and Adam Savage.

Adam and Jamie receive an email with a photo of a shredded plane and must decide if it is genuine; they investigate if it was the propeller or another aircraft that was the cause.

When the airship Hindenburg exploded, the globe's biggest aircraft in history became one of its greatest catastrophes, and new technology may show what caused the fatal crash and if it was sabotage.

Experts investigate the mysteries of the Bermuda Triangle using cutting-edge technology; as new discoveries reveal alien phenomena at the bottom of the ocean floor, researchers may finally uncover the truth behind this strange place.

A strange site called Saqqara is home to Egypt's very first pyramid; experts use cutting-edge tech to reveal why the ancient Egyptians started building pyramids and if the mummified animals found here are evidence of a bizarre religious cult.

New discoveries on a strange island in the Mediterranean might offer new clues in the hunt for Atlantis; experts reveal the apocalyptic event that destroyed this long-lost civilization.

New evidence recovered from the site of the World Trade Center's Twin Towers reveals answers to the greatest mysteries of these modern marvels, and using cutting-edge science and technology, experts investigate the science behind why they collapsed.

New discoveries at the lost city of Jericho offer fresh evidence about the biblical battle that brought its impregnable walls down; using the latest technology, experts investigate whether Joshua and the Israelites really conquered this ancient city.

The legendary city of Kish, Iraq, lies at the cradle of human civilization and home to some of the world's first kings; using cutting-edge tech, experts investigate the buried secrets of this lost city to uncover the first origins of royalty.

Along with Pompeii, the devastating eruption of Mount Vesuvius left another mysterious Roman settlement buried beneath its ashes; experts reveal new evidence of an ancient civilization and history's most infamous disaster.

The ancient necropolis of Abusir contains strange megastructures unlike any discovered in Egypt; experts gain rare access to investigate lost tombs and forgotten rituals to reveal the secrets of Egypt's Sun Cult pharaohs.

The Red Pyramid at Dahshur is a revolutionary megastructure and the first true pyramid ever constructed in ancient Egypt; experts investigate to reveal the pharaoh who built it and the mystery behind it's trailblazing design.

The Avenue of the Sphinxes has now been unearthed in the biggest excavation in Egyptian history; using cutting-edge CGI, investigators reveal the hidden secrets of the sphinxes.

Hadrian's Villa is the largest Roman palace ever constructed and demonstrates the opulent peak of Rome's ancient engineering; experts investigate secrets that could reveal the truth behind one of Rome's most enigmatic emperors.

An iron-age grave is discovered in the United Kingdom, shedding new light on Britain's history with Rome.

Nearly a decade after the ancient site of Nimrud was destroyed by terrorists, experts return to salvage the wreckage; archaeologists piece together the remaining ruins to reveal the origins and brutal decline of a lost empire.

An iron-age grave is discovered in the United Kingdom, shedding new light on Britain's history with Rome.

Nearly a decade after the ancient site of Nimrud was destroyed by terrorists, experts return to salvage the wreckage; archaeologists piece together the remaining ruins to reveal the origins and brutal decline of a lost empire.

Hadrian's Villa is the largest Roman palace ever constructed and demonstrates the opulent peak of Rome's ancient engineering; experts investigate secrets that could reveal the truth behind one of Rome's most enigmatic emperors.

Along with Pompeii, the devastating eruption of Mount Vesuvius left another mysterious Roman settlement buried beneath its ashes; experts reveal new evidence of an ancient civilization and history's most infamous disaster.

The ancient necropolis of Abusir contains strange megastructures unlike any discovered in Egypt; experts gain rare access to investigate lost tombs and forgotten rituals to reveal the secrets of Egypt's Sun Cult pharaohs.

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.

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

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.

Exploring new discoveries that rewrite the history of the solar system, revealing a complex and violent story that begins with the birth of the sun from the debris of a massive galactic collision to its eventual fate as a lone zombie star.

A hidden, subterranean city built within the Rock of Gibraltar is an immense fortress to control the seas during World War II; new discoveries reveal the secrets of a long-lost chamber with evidence of high-stakes espionage.

A strange, centuries-old labyrinth built into an abandoned quarry was built by an eccentric millionaire, and no one knows why; but now, a new excavation into this mysterious 9,000-foot tunnel system might finally reveal its dark secrets.

A labyrinth of vast tunnels in the French countryside has served as a secret hideout during wartime for centuries, and on its walls, experts have discovered the final confessions of soldiers who fought during one of the deadliest days of World War I.

A mysterious cave system is home to some of the oldest human remains ever discovered, and today, the explorers and researchers investigating this site are uncovering shocking evidence of cannibalism among its Ice Age denizens.

A strange underground system known as the Black Cave is connected to a fairytale castle and was home to an infamous nobleman on the run from the law; experts investigate the secrets he left here to discover new parts of this mysterious network.

A vast system of tunnels built almost 3,000 years ago was the site of the greatest battles of antiquity, and these disorienting passages could be the deadliest weapon in war; experts reveal what made this underground world so terrifying.

A buried ancient city hidden five-stories underground can house 3,000 people in secret; experts use the latest tech to reveal the truth behind this strange place.

Hollywood actor Peter Stormare and Elroy Balgaard begin a brand-new excavation at the mysterious Runestone Hill.

Hollywood actor Peter Stormare and Elroy Balgaard investigate new leads; when they meet a Native American professor who provides new information, they realize they must expand their investigation to the East Coast.

While the excavation continues Peter and Elroy go back to their investigation to clear Olof's name; they meet a Native American professor who gives them some new knowledge about the history of the area and his tribe.

Investigating a set of runestone relics that could reveal new truths about the mysterious Kensington Runestone.

Hollywood actor Peter Stormare and Elroy Balgaard investigate a theory that the Knights Templar were in America; new discoveries lead them deeper into a web of secret symbols and intrigue.

They finally get to see the famous Maine Penny and their visit to the Maine State Museum opens their minds to new possibilities; afterwards they meet anthropologist Harald Prins.

Investigating a set of runestone relics that could reveal new truths about the mysterious Kensington Runestone.

Hollywood actor Peter Stormare and Elroy Balgaard investigate a theory that the Knights Templar were in America; new discoveries lead them deeper into a web of secret symbols and intrigue.

They finally get to see the famous Maine Penny and their visit to the Maine State Museum opens their minds to new possibilities; afterwards they meet anthropologist Harald Prins.

While the excavation continues Peter and Elroy go back to their investigation to clear Olof's name; they meet a Native American professor who gives them some new knowledge about the history of the area and his tribe.

A vast system of tunnels built almost 3,000 years ago was the site of the greatest battles of antiquity, and these disorienting passages could be the deadliest weapon in war; experts reveal what made this underground world so terrifying.

A buried ancient city hidden five-stories underground can house 3,000 people in secret; experts use the latest tech to reveal the truth behind this strange place.

A distant planet shows an Earth-like atmosphere; a glowing light suggests an atmosphere on the Moon; why there are blueberries on Mars.

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

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.

The incredible secrets of the moon are revealed; the moon might be responsible for life on Earth.

Scientists attempt to understand how this strange force of magnetism works.

Using archival audio recordings, official transcripts and incident reports, UFO researchers investigate what really happened during encounters between law enforcement personnel and UFOs.

UFO sightings have been caught on film across the United States, yet the government continues to deny the existence of extraterrestrials; recent news of the Pentagon's secret UFO program may reveal evidence of what the military has known for decades.

An exploration into whether breakthroughs such as high-energy lasers, antigravity technology and super-advanced aircraft are the result of human efforts alone or contact with UFOs.

Evidence reveals the development of secret Nazi weapons not long after an alleged UFO crashed in Germany's Black Forest; UFO experts investigate whether the U.S. government co-opted this technology for its own space and military programs.

Evidence suggests contact with interstellar travelers in the distant past may have influenced humankind and many of its sacred sites.

Although alien abduction claims are often dismissed as hoaxes or delusions, there are landmark cases that scholars struggle to refute; Calvin Parker retells his harrowing experience of being abducted near the Pascagoula River in Mississippi.

UFO experts investigate whether the value, reverence and desire for gold is the result of extraterrestrial landings in the ancient past.

When cameras capture footage of a man who appears to lay an egg, some experts wonder if it's evidence that scientists created a human-reptile mutant through gene manipulation; using cutting-edge tech, investigators put this theory to the test.

Cameras capture footage of a ghostly figure in the window of Pablo Escobar's abandoned luxury building, mere moments before it is demolished, and some believe it was the notorious drug lord himself.

A mysterious explosion rocks the streets in Cambodia, and it may be linked to a temple complex; motorcyclists encounter what may be a legendary humanoid cannibal.

Cameras capture something shocking in a cemetery: empty graves, as if the dead walked out in the middle of the night; using cutting-edge tech, experts investigate what's behind this apparent evidence of zombie activity.

When cameras record a strange creature in the wilderness perform an incredible feat of strength, some suspect it's hard proof of Bigfoot; using cutting-edge science, experts investigate if they've discovered the spawn of Sasquatch and Iron Man.

Cameras capture footage of a highway swarmed with snake-like creatures and an unexplained ooze; the latest tech reveals where they came from and their top-secret purpose.

Cameras capture something shocking in a cemetery: empty graves, as if the dead walked out in the middle of the night; using cutting-edge tech, experts investigate what's behind this apparent evidence of zombie activity.

When cameras record a strange creature in the wilderness perform an incredible feat of strength, some suspect it's hard proof of Bigfoot; using cutting-edge science, experts investigate if they've discovered the spawn of Sasquatch and Iron Man.

Cameras capture footage of a highway swarmed with snake-like creatures and an unexplained ooze; the latest tech reveals where they came from and their top-secret purpose.

A mysterious explosion rocks the streets in Cambodia, and it may be linked to a temple complex; motorcyclists encounter what may be a legendary humanoid cannibal.

Although alien abduction claims are often dismissed as hoaxes or delusions, there are landmark cases that scholars struggle to refute; Calvin Parker retells his harrowing experience of being abducted near the Pascagoula River in Mississippi.

UFO experts investigate whether the value, reverence and desire for gold is the result of extraterrestrial landings in the ancient past.

Life may have been found on Mars; mysterious Moon Pigeons.

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.

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.

There is a planet in the solar system covered in thick, dense clouds and roasted by colossal temperatures, and is a vision of Earth's future; taking a look at Venus to understand how Earth will be destroyed.

Huge magnetic bubbles millions of miles wide; strange invisible matter, and a death star tearing through bands of icy comets, flinging them into violent orbits.

Trask and his team take on the iconic Space Needle in Seattle to fix an aging window-washing basket; in San Antonio, they look to get a stadium ready for game day.

Trask and his crew look for any critical issues on Foresthill Bridge in California, a vital escape route during wildfires; in Garden City, Kan., the team needs to inspect massive grain elevators where one spark could ignite a devastating explosion.

Trask takes on a decommissioned lighthouse 32 miles off the coast of North Carolina, and the crew must work suspended above shark-infested waters; an aging stadium with corroding catwalks needs maintenance for hockey season.

Trask and his crew scale Sutro Tower to inspect crucial cable junctions and must avoid deadly radiation at nearly 1,000 feet in the air; in Oregon, loose boulders need to be removed along a cliffside road that needs to be reopened.

Trask and his crew take on one of the world's largest bronze statues, Pegasus and Dragon, and they need to figure out how to get on this colossus of a structure; one of the world's largest roller coasters is due for an inspection.

Trask and his crew take on New Bullards Dam, and they need to place critical target sensors for monitoring seismic activity; in Colorado, a bird detection system needs to be installed at a wind turbine facility.

A perfect storm with tragic consequences strikes as flood waters rip away a major highway crossing in Huron, Calif.; experts use the latest tech to investigate and reveal bridge scouring with unsupported concrete columns exposed for failure.

A series of violent explosions rips through a major Texas oil refinery, causing a fatal disaster and devastation on a terrifying scale; experts use the latest science to investigate and uncover what triggered a catastrophic malfunction.

A deadly tragedy on a freeway in Oklahoma sends one of the state's busiest bridges collapsing into the Arkansas river below; expert engineers investigate how a tugboat striking a reinforced concrete pier could cause such a catastrophic disaster.

A shipping catastrophe occurs when a massive container vessel runs aground and completely blocks one of the most vital trade routes on the planet; experts investigate and uncover critical wind conditions and potential navigational errors.

Planes and trains have made the world smaller, but when things go wrong, hundreds of lives can be lost in an instant.

A vital hillside highway in Pennsylvania is destroyed in just minutes after a catastrophic landslide rocks a community; engineers investigate and uncover undetected geological issues with an increased and unstable traffic load.

When an indoor hotel walkway collapses in Kansas City, Mo., it becomes the most deadly engineering disaster in U.S. history; experts investigate and uncover evidence of a catastrophic design change in the support system construction.

Planes and trains have made the world smaller, but when things go wrong, hundreds of lives can be lost in an instant.

A vital hillside highway in Pennsylvania is destroyed in just minutes after a catastrophic landslide rocks a community; engineers investigate and uncover undetected geological issues with an increased and unstable traffic load.

When an indoor hotel walkway collapses in Kansas City, Mo., it becomes the most deadly engineering disaster in U.S. history; experts investigate and uncover evidence of a catastrophic design change in the support system construction.

A shipping catastrophe occurs when a massive container vessel runs aground and completely blocks one of the most vital trade routes on the planet; experts investigate and uncover critical wind conditions and potential navigational errors.

Trask and his crew take on New Bullards Dam, and they need to place critical target sensors for monitoring seismic activity; in Colorado, a bird detection system needs to be installed at a wind turbine facility.