A sprawling military facility dotted with bunkers for miles now stands abandoned in the American heartland of Edgemont, S.D.; experts investigate and uncover a once highly-secure WWII ordnance site designed to store deadly munitions.

Dive into the historical and natural secrets of the deep; explore an uninhabited concrete island, ocean spirals off the Australian coast, underwater evidence of a violent past and tracks thousands of metres below the sea's surface.

Contestants compete across the series, scoring points by answering questions correctly; they must avoid the impossible answers, otherwise they will be eliminated until the next day.

Investigate the sudden death of a tycoon linked to King Tut's tomb; search for three lighthouse keepers who vanished from the Flannan Isles, then analyze the gruesome, unexplained deaths of nine hikers at the Dyatlov Pass in the Ural Mountains.

Revealing the truth behind the planet's ancient legends; touring an island covered in polar bears, twin craters in Greece, peeking at a supervolcano hidden under Yellowstone Park and examining an ocean formation that's eerily similar to Atlantis.

Investigating an odd phenomenon that makes rocks slide across Death Valley; learning how pieces of jade rewrite Chinese history; examining animal bones that could show an earlier human arrival in the Americas; visiting Earth's oldest stone circle.

Lt. Ryan Graves and pilots in his squadron detect and engage with UFOs on multiple occasions; he gave a detailed description of regular encounters that flight teams had with a black box UFO they were seeing every day.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

Contestants compete across the series, scoring points by answering questions correctly; they must avoid the impossible answers, otherwise they will be eliminated until the next day.

Revealing the truth behind the planet's ancient legends; touring an island covered in polar bears, twin craters in Greece, peeking at a supervolcano hidden under Yellowstone Park and examining an ocean formation that's eerily similar to Atlantis.

A research facility spawns new technology with earth-shattering implications; a coastal haven for African Americans changes the nation; a forgotten fortress fights off a Nazi submarine; a staunch building stands firm on San Francisco's darkest day.

An Ontario man flings into a tornado; a helicopter and jet ski rescue team go into an intense flood; an avalanche crashes a party; an adventurer survives being trapped upside down in a raging river in Papua New Guinea.

A historic sea vessel rusts in the Delaware River; experts investigate and reveal a passenger liner and the architecture that doubled as a U.S. warship.

Investigating an odd phenomenon that makes rocks slide across Death Valley; learning how pieces of jade rewrite Chinese history; examining animal bones that could show an earlier human arrival in the Americas; visiting Earth's oldest stone circle.

An arid desert is engulfed with swirling waters and powerful vortices; a bizarre purple blob appears over a paradise island.

A historic sea vessel rusts in the Delaware River; experts investigate and reveal a passenger liner and the architecture that doubled as a U.S. warship.

A ship is found abandoned but undamaged in the middle of the ocean; a mysterious glowing orb chases locals down a railway track in Arkansas; Amelia Earhart vanishes on her pioneering round-the-world trip.

Underground chambers, medieval tombs, old ruins and fossils are uncovered.

A historic sea vessel rusts in the Delaware River; experts investigate and reveal a passenger liner and the architecture that doubled as a U.S. warship.

An enormous fiery vortex in Redding, Calif.; the island nation of Malta loses a natural treasure; a mysterious radioactive hotspot is discovered near Chernobyl; an unknown force lays waste to a mountain forest in Italian Alps.

Underground chambers, medieval tombs, old ruins and fossils are uncovered.

Trace the hidden legacy of a cancelled Canadian fighter jet and a failed CIA spy-cat experiment. See how these lost ideas resurfaced decades later, contributing to video games and global mapping tools in ways their creators never imagined.

An Ontario man flings into a tornado; a helicopter and jet ski rescue team go into an intense flood; an avalanche crashes a party; an adventurer survives being trapped upside down in a raging river in Papua New Guinea.

An arid desert is engulfed with swirling waters and powerful vortices; a bizarre purple blob appears over a paradise island.

A historic sea vessel rusts in the Delaware River; experts investigate and reveal a passenger liner and the architecture that doubled as a U.S. warship.

A ship is found abandoned but undamaged in the middle of the ocean; a mysterious glowing orb chases locals down a railway track in Arkansas; Amelia Earhart vanishes on her pioneering round-the-world trip.

Contestants compete across the series, scoring points by answering questions correctly; they must avoid the impossible answers, otherwise they will be eliminated until the next day.

Challenge long-held beliefs about Viking leadership, weaponry, and brutality; inspect a warriors tomb full of clues in Sweden, a sword of unparalleled quality in Norway, and a pile of headless skeletons in the UK that reveal unimaginable violence.

Walking among colossal wonders scattered across the Earth's surface, including an ancient reptile skeleton, a massive head carving in the Alberta badlands, a giant South African footprint and a pentagram etched into a remote peninsula in Kazakhstan.

Connecting the Great Pyramid to an archeological find near the Suez Canal; unveiling the secrets of colossal rock sculptures in Saudi Arabia; a mystical geological formation deep in the Sahara; unmasking a 37-million-year-old Egyptian enigma.

The West Coast is home to the San Andreas Fault, stretching for almost a thousand miles beneath the feet of millions of Americans.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

Contestants compete across the series, scoring points by answering questions correctly; they must avoid the impossible answers, otherwise they will be eliminated until the next day.

Walking among colossal wonders scattered across the Earth's surface, including an ancient reptile skeleton, a massive head carving in the Alberta badlands, a giant South African footprint and a pentagram etched into a remote peninsula in Kazakhstan.

Tour a gun making company town in Connecticut and a Jersey Shore facility that revolutionized transatlantic communication; investigate a Colorado plain that was the site of a brutal labor battle, then check out a fairytale mansion in New Hampshire.

A tornado bears down on a man and his dog in a New Jersey basement; holding back wildfires with a new homeowner in Australia; a Colorado hailstorm; a Norwegian boxer punches his way through deadly ice.

A sprawling military facility dotted with bunkers for miles now stands abandoned in the American heartland of Edgemont, S.D.; experts investigate and uncover a once highly-secure WWII ordnance site designed to store deadly munitions.

Connecting the Great Pyramid to an archeological find near the Suez Canal; unveiling the secrets of colossal rock sculptures in Saudi Arabia; a mystical geological formation deep in the Sahara; unmasking a 37-million-year-old Egyptian enigma.

A powerful, twisting tornado appears beneath the ocean; frozen lizards littering the streets.

A sprawling military facility dotted with bunkers for miles now stands abandoned in the American heartland of Edgemont, S.D.; experts investigate and uncover a once highly-secure WWII ordnance site designed to store deadly munitions.

Mountain climbers in California find the body of a U.S. Army soldier; strange bundles of canvas and wood are discovered on an Alaskan mountain; volcanic glass is found in an unexpected place; a vital World War II weather station is uncovered.

Cameras capture an enormous fireball erupting along with a series of explosions in a North Korean border town; experts investigate and discover a cramped and overcrowded housing project linked to a deadly propane tank disaster.

A cursed church hides centuries of eerie legends and unexplained paranormal events.

Mountain climbers in California find the body of a U.S. Army soldier; strange bundles of canvas and wood are discovered on an Alaskan mountain; volcanic glass is found in an unexpected place; a vital World War II weather station is uncovered.

Cameras capture an enormous fireball erupting along with a series of explosions in a North Korean border town; experts investigate and discover a cramped and overcrowded housing project linked to a deadly propane tank disaster.

In the jungles of southern Mexico, a rancher discovers dozens of skulls and bones on a cave floor; strange grass-covered domes are investigated in the Philippines; archaeologists uncover carved stone figures on the Hawaiian island of Kauai.

A tornado bears down on a man and his dog in a New Jersey basement; holding back wildfires with a new homeowner in Australia; a Colorado hailstorm; a Norwegian boxer punches his way through deadly ice.

A powerful, twisting tornado appears beneath the ocean; frozen lizards littering the streets.

A sprawling military facility dotted with bunkers for miles now stands abandoned in the American heartland of Edgemont, S.D.; experts investigate and uncover a once highly-secure WWII ordnance site designed to store deadly munitions.

When Pompeii was destroyed by an apocalyptic volcano in 79 AD, another Roman town was destroyed as well; experts use cutting-edge tech to investigate the secrets of Vesuvius' second victim.

Contestants compete across the series, scoring points by answering questions correctly; they must avoid the impossible answers, otherwise they will be eliminated until the next day.

Dr. Cori does emergency surgery on Bijoux, a tiny shih tzu puppy in a life-or-death situation; Dr. Allison brings her veterinarian skills to help a small northern Saskatchewan Cree community with the health of their pets.

Dr. Poitras and her team jump into action when they find an alarming mass on a beloved golden retriever named Rosey; Dr. Cori calms an anxious dog and offers some advice regarding new puppies when she meets an adorable chihuahua named Diesel.

Traipsing along ancient pathways crisscrossing Easter Island; finding gigantic designs carved into Asia's Eastern Steppe; ascending a tall pyramid rising from Antarctica's icy landscape.

Travel to Cairo to examine a stunning find under the Pyramid of Unas' watchful eye. Search for a 16th-century Portuguese shipwreck in the Namib Desert, unearth a WW II plane that crashed in the Sahara, and study a fossilized missing link in Taiwan.

Exploring the stories behind mankind's greatest engineering disasters through archives and expert interviews.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

Contestants compete across the series, scoring points by answering questions correctly; they must avoid the impossible answers, otherwise they will be eliminated until the next day.

Traipsing along ancient pathways crisscrossing Easter Island; finding gigantic designs carved into Asia's Eastern Steppe; ascending a tall pyramid rising from Antarctica's icy landscape.

Explore a Louisiana military base that helped save the world, then descend into a basement filled with Prohibition-era secrets; look around a bizarre castle in the Colorado mountains and a ruined Pennsylvania resort that was a Union stronghold.

Severe flooding forces families across Europe onto their rooftops; a Nepali avalanche; deadly wildfires in the Sierra Nevada; an eastern U.S. whiteout that strands motorists for 24 hours in their cars.

A secret Russian military base in the Gobi Desert; a strange complex in an American wasteland; a relic high atop a mountain.

Travel to Cairo to examine a stunning find under the Pyramid of Unas' watchful eye. Search for a 16th-century Portuguese shipwreck in the Namib Desert, unearth a WW II plane that crashed in the Sahara, and study a fossilized missing link in Taiwan.

Satellite images of violent vortexes above a volcanic island; a man films a dazzling heavenly vision over suburban rooftops.

A secret Russian military base in the Gobi Desert; a strange complex in an American wasteland; a relic high atop a mountain.

Jack Black, Paul Rudd, Jessie Buckley, Michelle de Swarte.

Jack Black, Paul Rudd, Jessie Buckley, Michelle de Swarte.

Reviewing footage of an underground volcanic eruption in Tonga and the tsunami it triggers; mapping the path of destruction left by a giant tornado in the U.S. South; fierce storms in Europe.

Jack Black, Paul Rudd, Jessie Buckley, Michelle de Swarte.

Jack Black, Paul Rudd, Jessie Buckley, Michelle de Swarte.

Sandi Toksvig, Alan Davies, Cariad Lloyd, Josh Widdicombe and Noel Fielding celebrate Christmas by discussing pubs.

Sandi Toksvig considers pain and punishment with Jimmy Carr, Lee Mack, Alice Levine and Alan Davies.

Severe flooding forces families across Europe onto their rooftops; a Nepali avalanche; deadly wildfires in the Sierra Nevada; an eastern U.S. whiteout that strands motorists for 24 hours in their cars.

Satellite images of violent vortexes above a volcanic island; a man films a dazzling heavenly vision over suburban rooftops.

A secret Russian military base in the Gobi Desert; a strange complex in an American wasteland; a relic high atop a mountain.

Investigate the sudden death of a tycoon linked to King Tut's tomb; search for three lighthouse keepers who vanished from the Flannan Isles, then analyze the gruesome, unexplained deaths of nine hikers at the Dyatlov Pass in the Ural Mountains.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

Challenge long-held beliefs about Viking leadership, weaponry, and brutality; inspect a warriors tomb full of clues in Sweden, a sword of unparalleled quality in Norway, and a pile of headless skeletons in the UK that reveal unimaginable violence.

Investigate the sudden death of a tycoon linked to King Tut's tomb; search for three lighthouse keepers who vanished from the Flannan Isles, then analyze the gruesome, unexplained deaths of nine hikers at the Dyatlov Pass in the Ural Mountains.

An enormous fiery vortex in Redding, Calif.; the island nation of Malta loses a natural treasure; a mysterious radioactive hotspot is discovered near Chernobyl; an unknown force lays waste to a mountain forest in Italian Alps.

Fails include a disastrous shuttle mission, and an unwanted and very expensive airport.

Sandi Toksvig, Alan Davies, Cariad Lloyd, Josh Widdicombe and Noel Fielding celebrate Christmas by discussing pubs.

Paid programming.

Dealing with toxic fallout after a hot real estate market forces Jason and Alisha to buy a house without getting a home inspection; the Holmes team transforms a moldy, radon-filled eyesore into a cozy, healthy place to raise a family.

In Alberta, a routine neuter turns tricky for a big old tomcat; a young dog needs a full workup to assess her injuries after getting hit by a car; in Vanderhoof, Dr. Cori is shocked when a boxer named Gemma suddenly can't feel her feet.

Experience the day-to-day drama of life in New Zealand's biggest doggy daycare.

Experience the day-to-day drama of life in New Zealand's biggest doggy daycare.

Caroline Aherne narrates as some of Britain's most opinionated viewers comment freely.

Experience the day-to-day drama of life in New Zealand's biggest doggy daycare.

Cheer as big baby Yodel faces his fears, then get ready to graduate with Mabel.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

Jack Black, Paul Rudd, Jessie Buckley, Michelle de Swarte.

Sandi Toksvig, Alan Davies, Cariad Lloyd, Josh Widdicombe and Noel Fielding celebrate Christmas by discussing pubs.

Sandi Toksvig considers pain and punishment with Jimmy Carr, Lee Mack, Alice Levine and Alan Davies.

Sandi Toksvig considers pain and punishment with Jimmy Carr, Lee Mack, Alice Levine and Alan Davies.

Dust off a 57-foot Roman mosaic rattled loose by a Turkish earthquake, then encounter a lost cargo ship off the Israeli coast. Unlock an otherworldly boat during a Mexican drought and spot an Iron Age dagger embedded in a collapsed Polish cliff.

Cameras capture an enormous fireball erupting along with a series of explosions in a North Korean border town; experts investigate and discover a cramped and overcrowded housing project linked to a deadly propane tank disaster.

Underground chambers, medieval tombs, old ruins and fossils are uncovered.

Uncover the origins of an LA zombie fire and a deadly Indian bridge collapse. See how superheated water fuelled a monster hurricane in Acapulco, then find out how biblical-level floods unleashed a rare, soil-dwelling mud bug plague across Australia.

Dust off a 57-foot Roman mosaic rattled loose by a Turkish earthquake, then encounter a lost cargo ship off the Israeli coast. Unlock an otherworldly boat during a Mexican drought and spot an Iron Age dagger embedded in a collapsed Polish cliff.

A ship is found abandoned but undamaged in the middle of the ocean; a mysterious glowing orb chases locals down a railway track in Arkansas; Amelia Earhart vanishes on her pioneering round-the-world trip.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

Challenge long-held beliefs about Viking leadership, weaponry, and brutality; inspect a warriors tomb full of clues in Sweden, a sword of unparalleled quality in Norway, and a pile of headless skeletons in the UK that reveal unimaginable violence.

On Aug. 10, 2020, hurricane-force winds blast through Iowa battering the city of Cedar Rapids; this rare derecho packing powerful straight line winds takes the city by surprise and leaves behind a trail of destruction.

On Aug. 17, 2020, a series of lightning strikes ignite multiple fires around Napa Valley; fanned by intense winds, the fires rapidly intensify into the LNU Fire Complex.

In The City Barn, the plan is to fix the roof and make the house accessible for thirteen-year-old Jake; When the reno gets delayed, the Holmes' begin a second job and find out how a little leak turned into a huge disaster for the homeowners.

Structural issues at both houses mean the Holmes' have to divide and conquer; Michael tackles the roof and the structural issues at The City Barn; Mike finds issues when taking down a load-bearing wall at The Flood House.

The Flood House is on its way to completion; the showpiece gas fireplace with custom mantle brings Barb to tears; More structural issues are found at The City Barn, causing Mike and the team to worry.

New cottages built on a lake retreat; a four season retreat.

Paid programming.

Contractor Mike Holmes joins forces with his children, Michael and Sherry, to continue his legacy of making it right and helping homeowners in need.

The Holmes team surprises superfan Michael, who has autism, with news that he's part of the crew; his family gets a life-changing upgrade that will open up their tired bungalow and give them more room for living.

Dealing with toxic fallout after a hot real estate market forces Jason and Alisha to buy a house without getting a home inspection; the Holmes team transforms a moldy, radon-filled eyesore into a cozy, healthy place to raise a family.

Craftsmen pool their talents and resources to restore heirlooms and treasured antiques such as music boxes, vases and clocks to prove that anything can be restored to their former glory.

Suzie sews up a purse that once held an immigrant's hopes and dreams; Dom and Will rebuild an heirloom Noah's Ark windmill; Amanda and Julie give a sweet doll a long-awaited makeover.

Julie and Amanda revive a 74-year-old teddy bear that's been a pal to three generations of one family; Jonathan restores a Jamaican seamstress' treasured fabric shears; Suzie polishes up a schoolboy's book bag.

With the waterways open, Alaskans navigate rivers for key resources.

Uncover the origins of an LA zombie fire and a deadly Indian bridge collapse. See how superheated water fuelled a monster hurricane in Acapulco, then find out how biblical-level floods unleashed a rare, soil-dwelling mud bug plague across Australia.

Uncover the fallout from a terrifying nuclear missile program and a failed living weapon. Learn how abandoned military experiments created unexpected breakthroughs, from the materials used in modern computers to new ways of sensing the world.

Examine a cluster of colourful, unexplained crafts in the Hawaiian sky with Jennifer. Explore the legend of the star people with local experts, gaze through a vast telescope, and see if these visitors are real or just tales told in paradise.

Winter has arrived and the NWS homesteaders must face a set of backwoods challenges.

Uncover the fallout from a terrifying nuclear missile program and a failed living weapon. Learn how abandoned military experiments created unexpected breakthroughs, from the materials used in modern computers to new ways of sensing the world.

In The City Barn, the plan is to fix the roof and make the house accessible for thirteen-year-old Jake; When the reno gets delayed, the Holmes' begin a second job and find out how a little leak turned into a huge disaster for the homeowners.

Structural issues at both houses mean the Holmes' have to divide and conquer; Michael tackles the roof and the structural issues at The City Barn; Mike finds issues when taking down a load-bearing wall at The Flood House.

The Flood House is on its way to completion; the showpiece gas fireplace with custom mantle brings Barb to tears; More structural issues are found at The City Barn, causing Mike and the team to worry.

Craftsmen pool their talents and resources to restore heirlooms and treasured antiques such as music boxes, vases and clocks to prove that anything can be restored to their former glory.

Suzie sews up a purse that once held an immigrant's hopes and dreams; Dom and Will rebuild an heirloom Noah's Ark windmill; Amanda and Julie give a sweet doll a long-awaited makeover.

Julie and Amanda revive a 74-year-old teddy bear that's been a pal to three generations of one family; Jonathan restores a Jamaican seamstress' treasured fabric shears; Suzie polishes up a schoolboy's book bag.

Shining the spotlight on an actor who's ready to get in the game; getting wild with an animal-themed question; a geography test.

Uncover the fallout from a terrifying nuclear missile program and a failed living weapon. Learn how abandoned military experiments created unexpected breakthroughs, from the materials used in modern computers to new ways of sensing the world.

Exploring some of the most cavernous places on the planet, including an expansive Siberian crater with no explainable origin, Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert, and a voluminous void in Antarctica.

Ancient human remains believed to belong to a great hunter are discovered in the Peruvian highlands. In Tunisia, the ruins of a legendary lost Roman city may have finally been found. Strange sounds emanating from sand dunes in the Mongolian desert are investigated. A huge collection of human and animal bones is discovered in a cave in Saudi Arabia.

Discover shocking truths about religious rituals, sacred symbols, and spiritual traditions. Learn the brutal truth about execution rites in Roman England, look at shark bones in a Peruvian temple, and unearth a secret silver amulet in Germany.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

Shining the spotlight on an actor who's ready to get in the game; getting wild with an animal-themed question; a geography test.

Exploring some of the most cavernous places on the planet, including an expansive Siberian crater with no explainable origin, Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert, and a voluminous void in Antarctica.

Scattered across the United States are abandoned structures, forgotten ruins of the past and monuments to a bygone era that reveal the secrets of a hidden America.

Vacationers end up trapped in a pool surrounded by fire; a Czech man faces a rare F4 tornado; an animal rescuer works in the aftermath of Hurricane Florence; a kayaker paddles through a pacific storm.

The secrets of a dilapidated concrete wall wedged perilously into the Italian mountains; peek at five eerie circular structures on a Cuban island; explore a former American escape route from nuclear Armageddon; a submerged link to D-Day.

Ancient human remains believed to belong to a great hunter are discovered in the Peruvian highlands. In Tunisia, the ruins of a legendary lost Roman city may have finally been found. Strange sounds emanating from sand dunes in the Mongolian desert are investigated. A huge collection of human and animal bones is discovered in a cave in Saudi Arabia.

A twisting swarm of menacing aerial creatures glides above the suburbs; bizarrely parting seas suggest connections to ancient legends; a volcano produces deadly hair-like fibers.

The secrets of a dilapidated concrete wall wedged perilously into the Italian mountains; peek at five eerie circular structures on a Cuban island; explore a former American escape route from nuclear Armageddon; a submerged link to D-Day.

Map the deadly fallout from an Ohio train derailment, spot the hidden forces behind a Category 5 Florida hurricane, and observe a secretive Area 51 wildfire. Then learn how a rare meteorological chain reaction drowned the desert megacity of Dubai.

Earthquakes, droughts and collapsing dams expose artifacts and graves.

Lightning causes construction mayhem, cities are sinking, and bridges are falling down.

Map the deadly fallout from an Ohio train derailment, spot the hidden forces behind a Category 5 Florida hurricane, and observe a secretive Area 51 wildfire. Then learn how a rare meteorological chain reaction drowned the desert megacity of Dubai.

Earthquakes, droughts and collapsing dams expose artifacts and graves.

Exploring the stories behind mankind's greatest engineering disasters through archives and expert interviews.

Vacationers end up trapped in a pool surrounded by fire; a Czech man faces a rare F4 tornado; an animal rescuer works in the aftermath of Hurricane Florence; a kayaker paddles through a pacific storm.

A twisting swarm of menacing aerial creatures glides above the suburbs; bizarrely parting seas suggest connections to ancient legends; a volcano produces deadly hair-like fibers.

The secrets of a dilapidated concrete wall wedged perilously into the Italian mountains; peek at five eerie circular structures on a Cuban island; explore a former American escape route from nuclear Armageddon; a submerged link to D-Day.

In the summer of 1952, stories of U.S. Air Force jets chasing UFOs over the White House knock the Korean War off the front pages of newspapers; as rumors spread, President Harry S. Truman demands to know what was flying over his house.

Bonding over math with a new player before a history quiz helps another steal a spot in the endgame.

Winter has arrived and the NWS homesteaders must face a set of backwoods challenges.

A perfect circle carved around an ancient peak; a scary phenomenon in the Pacific; strange shapes in a Middle Eastern desert; a formation below the ocean's surface.

Examine a tiny skeleton in Chile that set off a firestorm of alien speculation; explore a forgotten Silk Road settlement; uncover evidence of a mass sacrifice in northern Peru and visit a multi-faceted military site from the age of the pharaohs.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

Bonding over math with a new player before a history quiz helps another steal a spot in the endgame.

A perfect circle carved around an ancient peak; a scary phenomenon in the Pacific; strange shapes in a Middle Eastern desert; a formation below the ocean's surface.

The origins of a colossal image of a man carved into the red sands of Central Australia; mysterious mummies and peculiar whale bones resting in two different parts of Chile's Atacama Desert; a lost Egyptian tomb.

An Australian family washed out of their off-grid home by flash floods; a woman crashes through the ice trying to save her dog; a golf course tornado; an adventurer injured in a freak rainstorm in British Columbia.

Scattered across the United States are abandoned structures, forgotten ruins of the past and monuments to a bygone era that reveal the secrets of a hidden America.

Examine a tiny skeleton in Chile that set off a firestorm of alien speculation; explore a forgotten Silk Road settlement; uncover evidence of a mass sacrifice in northern Peru and visit a multi-faceted military site from the age of the pharaohs.

A devastating river of mud and rocks threatens a sleepy mountain valley; bizarre patterns beneath a frozen river may be strange morphing creatures; a jellyfish-shaped cloud may be a sign of dangerous weather to come.

Scattered across the United States are abandoned structures, forgotten ruins of the past and monuments to a bygone era that reveal the secrets of a hidden America.

Game 1 features Mexico taking on South Korea, followed by Game 2 with the USA versus England.

Deal with hungry Zoya's kitchen raid before schnoodle Billy gets scary news.

At six months, the pups have strong bonds with their handlers; they face big tests as they learn how to herd livestock and respond to calls.

Check out the VIP Room with shih tzu Portia.

Caring for an oxygen-hungry foal; hunting for grass seeds in paws and noses.

Game 1 features Mexico taking on South Korea, followed by Game 2 with the USA versus England.

Deal with hungry Zoya's kitchen raid before schnoodle Billy gets scary news.

At six months, the pups have strong bonds with their handlers; they face big tests as they learn how to herd livestock and respond to calls.

Check out the VIP Room with shih tzu Portia.

Caring for an oxygen-hungry foal; hunting for grass seeds in paws and noses.

An Australian family washed out of their off-grid home by flash floods; a woman crashes through the ice trying to save her dog; a golf course tornado; an adventurer injured in a freak rainstorm in British Columbia.

A devastating river of mud and rocks threatens a sleepy mountain valley; bizarre patterns beneath a frozen river may be strange morphing creatures; a jellyfish-shaped cloud may be a sign of dangerous weather to come.

Scattered across the United States are abandoned structures, forgotten ruins of the past and monuments to a bygone era that reveal the secrets of a hidden America.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

A brain-busting series of questions on the film "Batman vs. Superman;" an art history student strikes out in her chosen category, then bets it all on a food-and-drink challenge that leaves the last contestant hungry for a jackpot win.

Uncover how a royal imprisoned two princes and took the British throne; ponder how the Irish crown jewels were stolen from a locked safe inside Dublin Castle, then see if the death of Amy Robsart at Elizabeth I's court was an accident or murder.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

Exploring an ancient Egyptian cemetery filled with everyday people and find links to historic weaponry in a horseshoe-shaped French monument; puzzle over a lost South Asian society, then see if human remains found in Wales hint at coastal rituals.

In the summer of 1952, stories of U.S. Air Force jets chasing UFOs over the White House knock the Korean War off the front pages of newspapers; as rumors spread, President Harry S. Truman demands to know what was flying over his house.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

A brain-busting series of questions on the film "Batman vs. Superman;" an art history student strikes out in her chosen category, then bets it all on a food-and-drink challenge that leaves the last contestant hungry for a jackpot win.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

Discover 10 preserved Byzantine-era crocodiles on the banks of the Nile; untangle the puzzle of the Namib Desert's grass circles; locate the remnants of a lost foreign-ruled city in Egypt and solve the riddle of Peru's Band of Holes.

Wind-fuelled blazes in a snow-blanketed Colorado town; stranded restaurant workers in frigid temperatures; a flash flood rages beneath a family's truck; over 40 twisters over two days in Alabama.

Visiting a controversial natural oasis in upstate New York; spying on the classified remains of a cutting-edge government vehicle project in Colorado; exploring a doomed monument to hope in Memphis and a strange Pacific Northwest town with a secret.

Exploring an ancient Egyptian cemetery filled with everyday people and find links to historic weaponry in a horseshoe-shaped French monument; puzzle over a lost South Asian society, then see if human remains found in Wales hint at coastal rituals.

Flammable snow could be an international danger; black smoke with a mind of its own; a giant red dome that appears to defy the laws of physics.

Visiting a controversial natural oasis in upstate New York; spying on the classified remains of a cutting-edge government vehicle project in Colorado; exploring a doomed monument to hope in Memphis and a strange Pacific Northwest town with a secret.

A ship is found abandoned but undamaged in the middle of the ocean; a mysterious glowing orb chases locals down a railway track in Arkansas; aviator Amelia Earhart vanishes on her pioneering round-the-world trip.

A mysterious tunnel, colonial ruins and warrior cemeteries are exposed.

Visiting a controversial natural oasis in upstate New York; spying on the classified remains of a cutting-edge government vehicle project in Colorado; exploring a doomed monument to hope in Memphis and a strange Pacific Northwest town with a secret.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; wing your way over a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

A mysterious tunnel, colonial ruins and warrior cemeteries are exposed.

Uncover the fallout from a terrifying nuclear missile program and a failed living weapon. Learn how abandoned military experiments created unexpected breakthroughs, from the materials used in modern computers to new ways of sensing the world.

Wind-fuelled blazes in a snow-blanketed Colorado town; stranded restaurant workers in frigid temperatures; a flash flood rages beneath a family's truck; over 40 twisters over two days in Alabama.

Flammable snow could be an international danger; black smoke with a mind of its own; a giant red dome that appears to defy the laws of physics.

Visiting a controversial natural oasis in upstate New York; spying on the classified remains of a cutting-edge government vehicle project in Colorado; exploring a doomed monument to hope in Memphis and a strange Pacific Northwest town with a secret.

A ship is found abandoned but undamaged in the middle of the ocean; a mysterious glowing orb chases locals down a railway track in Arkansas; aviator Amelia Earhart vanishes on her pioneering round-the-world trip.

The thirty contestants have one chance to reach the final and get the chance to win the 10,000 pound coins sitting in the giant exclamation mark in the daytime quiz hosted by Rick Edwards.

Discovering shocking truths about religious rituals, sacred symbols, and spiritual traditions; learning the brutal truth about execution rites in Roman England, looking at shark bones in a Peruvian temple; unearthing a silver amulet in Germany.

Explores strongholds abandoned by their architects; a lost city in the Amazon jungle; a desert fortress made by humanity's most notorious empire; explores a city of identical castles; examines a Greek isle's bloody history from the air.

Experts uncover four global stories of extraordinary curiosities that were once concealed in the deserts of the planet.

The West Coast is home to the San Andreas Fault, stretching for almost a thousand miles beneath the feet of millions of Americans.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

The thirty contestants have one chance to reach the final and get the chance to win the 10,000 pound coins sitting in the giant exclamation mark in the daytime quiz hosted by Rick Edwards.

Explores strongholds abandoned by their architects; a lost city in the Amazon jungle; a desert fortress made by humanity's most notorious empire; explores a city of identical castles; examines a Greek isle's bloody history from the air.

Investigating an odd phenomenon that makes rocks slide across Death Valley; learning how pieces of jade rewrite Chinese history; examining animal bones that could show an earlier human arrival in the Americas; visiting Earth's oldest stone circle.

A massive typhoon in the Philippines; a record-breaking California wildfire; a submerged house; a lost snowboarder spends an icy night facing bears and deadly frostbite.

A Montana small town branded by an infamous jailbreak; how nature trumped greed during an Alaska treasure hunt; a cultural icon from the rough side of New Orleans; the Empire State of the South.

Experts uncover four global stories of extraordinary curiosities that were once concealed in the deserts of the planet.

A daredevil aviator vanishes into thin air on a routine flight; A mystery blast rocks a remote island; Napoleon Bonaparte suffers a shock defeat.

A Montana small town branded by an infamous jailbreak; how nature trumped greed during an Alaska treasure hunt; a cultural icon from the rough side of New Orleans; the Empire State of the South.

Archaeologists make a grim discovery when they uncover the remains of a mummified boy buried in the frozen Siberian landscape, and as researchers continue their excavation, they uncover 88 additional graves linked to a mysterious, ancient necropolis.

Cameras capture stunned pedestrians running for cover as droplets of fire begin to rain down on the streets of St. Petersburg, Russia; experts investigate a network of nearby tram lines and the effect of a sudden lightning storm.

A golden-eyed priestess sparks myths of mystical powers and deep-rooted local folklore.

Archaeologists make a grim discovery when they uncover the remains of a mummified boy buried in the frozen Siberian landscape, and as researchers continue their excavation, they uncover 88 additional graves linked to a mysterious, ancient necropolis.

Cameras capture stunned pedestrians running for cover as droplets of fire begin to rain down on the streets of St. Petersburg, Russia; experts investigate a network of nearby tram lines and the effect of a sudden lightning storm.

Experts uncover four global stories of extraordinary curiosities that were once concealed in the deserts of the planet.

A massive typhoon in the Philippines; a record-breaking California wildfire; a submerged house; a lost snowboarder spends an icy night facing bears and deadly frostbite.

A daredevil aviator vanishes into thin air on a routine flight; A mystery blast rocks a remote island; Napoleon Bonaparte suffers a shock defeat.

A Montana small town branded by an infamous jailbreak; how nature trumped greed during an Alaska treasure hunt; a cultural icon from the rough side of New Orleans; the Empire State of the South.

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.

Weighing options carefully as Rick welcomes 24 new contestants, who all want a chance to make 10,000 one-pound coins rain from the giant exclamation point on stage; seeing who wins big by keeping their cool and dodging the impossible answers.

At six months, the pups have strong bonds with their handlers; they face big tests as they learn how to herd livestock and respond to calls.

Peek at landmarks in places where they shouldn't be; wing your way over an imperial pyramid in the Netherlands, a metal sphere in remote Russia, a lion shape carved into an English hillside and a bare swath cut through an Austrian forest.

Experts uncover four global stories of extraordinary curiosities that were once concealed in the deserts of the planet.

Exploring the stories behind mankind's greatest engineering disasters through archives and expert interviews.

Budding entrepreneurs get three minutes to pitch their business ideas to five multimillionaires who are willing to invest their own cash to kick-start the businesses in the original "Shark Tank." After each pitch, the Dragons have the opportunity to ask questions about the venture. The entrepreneurs don't always have to answer, but of course what they choose not to address could very well affect the outcome. The pitch is over when each of the Dragons has declared,"I'm out." Evan Davis hosts.

Weighing options carefully as Rick welcomes 24 new contestants, who all want a chance to make 10,000 one-pound coins rain from the giant exclamation point on stage; seeing who wins big by keeping their cool and dodging the impossible answers.

Peek at landmarks in places where they shouldn't be; wing your way over an imperial pyramid in the Netherlands, a metal sphere in remote Russia, a lion shape carved into an English hillside and a bare swath cut through an Austrian forest.

Connecting the Great Pyramid to an archeological find near the Suez Canal; unveiling the secrets of colossal rock sculptures in Saudi Arabia; a mystical geological formation deep in the Sahara; unmasking a 37-million-year-old Egyptian enigma.

Reviewing footage of an underground volcanic eruption in Tonga and the tsunami it triggers; mapping the path of destruction left by a giant tornado in the U.S. South; fierce storms in Europe.

A castle-like building in Washington State that fueled an American treasure hunt; the Southern US site of a murder that ushered in a new era; exploration of an unlikely beacon of progress in a rough Wyoming mining town.

Experts uncover four global stories of extraordinary curiosities that were once concealed in the deserts of the planet.

A young boy is swallowed by a sand dune and miraculously survives; A fog lasts five days and kills thousands in London; The largest ship in the US Navy vanishes during World War I.

A castle-like building in Washington State that fueled an American treasure hunt; the Southern US site of a murder that ushered in a new era; exploration of an unlikely beacon of progress in a rough Wyoming mining town.