Josh Gates touches down in Normandy to investigate battles on land, air, and sea. The expedition reveals a Nazi threat greater than ever imagined, unearthing a massive German bunker complex buried for 75 years.

Josh Gates investigates the most mysterious airline disaster in American history -- searching for why Northwest Flight 2501 vanished, taking the lives of all 58 people on board.

In this expansive, two-part investigation, Josh Gates travels the globe attempting to solve the most fundamental mystery of all -- humanity's origins. How did we survive to the modern day? And what does that mean for our future?

Josh Gates travels to Africa to get up close and personal with a distant relative and scale dangerous cliffs all to answer one question: Where did humans come from?

Searching across England, Josh Gates unearths a cache of ancient treasure as he chases the legend of Queen Boudica, the legendary Celtic queen who nearly defeated the invading Roman army 2,000 years ago.

Josh Gates takes on the Indian Ocean's punishing waters as he chases the lost treasure of Olivier Levasseur, AKA "The Buzzard," rumored to be worth more than a billion dollars.

Josh Gates dives into the mysteries of the Bermuda Triangle. His investigation leads him to the ocean floor, the skies above and even the edge of space as he tackles some of the most intriguing disappearances in history.

In the conclusion of his epic investigation, Josh Gates uses cutting-edge technology to investigate the Triangle's most infamous shipwreck and lost flights. Will he find answers to just how the Triangle works or will it forever remain a mystery?

Josh Gates travels to the Holy Land to unearth the mystery of the Dead Sea Scrolls with an archaeologist who has discovered new ones; Josh sees cutting-edge technology restore scroll fragments in a way that could change how people read the Bible.

Josh Gates investigates a unique Dead Sea Scroll etched with riddles that could lead to an ancient treasure. Following new leads, Josh treks into the punishing Jordanian desert in search of the potential fortune.

Josh Gates searches land and sea for the lost fortune of legendary pirate Sir Francis Drake; joining treasure hunters and maritime archaeologists, Josh hunts for a lost cache of Spanish gold and the remains of Drake himself.

Braving sub-zero conditions of Siberia, Josh Gates investigates the Dyatlov Pass incident, during which nine hikers died under suspicious circumstances in 1959.

Josh Gates concludes his in-depth investigation of the Dyatlov Pass incident; taking on Dead Mountain's brutal conditions, Josh and two investigators retrace the last steps of the hikers; a big discovery could finally solve the mystery.

Josh Gates sets sail for Florida chasing the long-lost treasure of Jose Gaspar. Josh joins marine archaeologists and treasure hunters working to crack the mysteries of the pirate's life so they can find the riches he left behind.

In Puerto Rico, Josh Gates explores caves and treks through dense jungles in search of the chupacabra; working with a wildlife biologist, a veterinarian and an investigator, Josh explores a recent wave of attacks to separate fact from fiction.

Josh Gates heads to an active dig site in Egypt, where he joins famous archaeologist Dr. Zahi Hawass on the cusp of an incredible discovery: the mummy of an ancient High Priest.

With a potential new breakthrough in the search for a Snake King tomb, Josh Gates returns to the jungles of Guatemala and the archaeological dig at the ancient Mayan city of El Mirador; the archeologists attempt to pinpoint the tomb's location.

Josh Gates is on a nation-wide treasure hunt to solve a mystery no one has cracked for 40 years: The Secret. Josh travels coast-to-coast and back in time using cutting edge augmented reality and tapping into a network of obsessed Secret detectives.

Josh Gates has a fresh lead on the massive lost treasure of the shipwrecked 1715 Spanish fleet. Josh returns to the waters of Florida's Atlantic coast and dives in with a new expedition that uses the latest high tech to locate the fleet's flagship.

Four years after Josh Gates went on a journey to find the lost heart of Sultan Suleiman the Magnificent, he travels to the newly rediscovered town of Turbek for some shocking new revelations about the case.

Josh Gates cuts another expedition short to return to his hometown of Boston and pursue the strongest lead in decades for a 40 year old treasure hunt dubbed: The Secret. Following the amazing solve of a Boston puzzle maker could lead him to the very prize he has sought himself for years.

Live from the middle of the Egyptian desert, inside a great underground tomb complex, a sealed sarcophagus may contain the identity of a mummy who has remained a mystery for 3000 years.

Josh Gates ventures into the former Third Reich in search of an elusive Nazi fortune hidden with a code allegedly created by Hitler's private secretary, and embedded into a piece of sheet music.

Josh Gates journeys to the Holy Land to find out where Jesus was born; his investigation leads to potentially explosive revelations that may change people's understanding of Jesus' origin story.

Josh Gates dives into a mystery below South America's Lake Titicaca. During the investigation, Josh discovers multiple structures of the ancient Tiwanaku people, including ruins hidden in the lake's depths, dubbed "The Atlantis of the Andes".

Hunting for a lost cache of gold, Josh Gates heads to the Scottish Highlands. His search focuses on a huge gold reserve hidden after the Jacobite Uprising of 1745 and never recovered. Josh joins treasure hunters chasing a new lead across the Highlands.

Josh Gates tackles an enduring maritime mystery, the first ship to be lost in the Great Lakes, the Griffon. Using a state of the art two-man submersible, Josh dives in to find a ship so elusive it's known as "The Holy Grail of Shipwrecks."

Josh Gates takes on Central America's jungles to investigate the legendary crystal skull discovered by a renowned adventurer who was the inspiration for Indiana Jones. Josh probes whether the skull is an invaluable relic or archaeology's tallest tale.

Josh Gates explores the case of lost World War II hero Gertrude "Tommy" Tompkins of the Women Air Force Service Pilots, who went missing when her P-51 Mustang crashed. Josh joins search teams using cutting-edge technology to bring the lost hero home.

Josh Gates stalks prey that has eluded capture for 25 years, the Golden Owl. A book of riddles gives cryptic clues to where the Owl statuette, worth half a million dollars, is hidden. Josh joins treasure hunters using new leads to chase the fortune.

Seeking evidence of the afterlife, Josh Gates enters an ancient Roman "Gate to Hell" that still claims victims. A medical doctor demonstrates how consciousness survives death, and a gifted medium shocks Josh with a message from beyond the grave.

To crack the code of reincarnation, Josh seeks out expert Dr. Deepak Chopra, who advises him to investigate the phenomenon firsthand in India. He explores an Islamic path to paradise in Turkey and faces a man possessed by an evil spirit.

From ancient tombs to the latest bio-technology, humans have always been obsessed with cheating death. Josh visits a tribe in Indonesia where people live with mummies and a Russian cryonics lab at the cutting edge of freezing humans for the future.

They say you only live once, but can we return from the abyss? In the Amazon, Josh meets a shaman who takes him on a trip to the brink of the afterlife. Then a team of investigators guide him into one of the most haunted places on Earth.

Archaeologist Dr. Richard Hansen joins Josh and his team to venture deep into the Guatemalan rainforest to find the hidden tombs of the mysterious Snake Kings in the ancient Mayan city of El Mirador.

Josh concludes his investigation into the mysterious Maya city of El Mirador, from the possible burial of the elusive Snake Kings to uncovering the secrets behind the fall of one of history's greatest ancient cities.

Josh ventures to Argentina, where many Nazi SS officers escaped to after World War II.

Josh ventures to the American south to uncover the mystery of real-life buccaneer Jean Laffite and the location of his hidden treasure.

Josh goes down under to search along Australia's infamous Shipwreck Coast for the missing Mahogany Ship.

Josh investigates the theft of one of the most iconic pieces of Hollywood memorabilia of all time — the ruby slippers worn by Judy Garland in the 1939 classic movie, The Wizard of Oz.

In an extended episode with new footage, Profiles in History CEO Joe Maddalena and Josh Gates assist in the recovery of stolen ruby slippers from the movie, "The Wizard of Oz." Investigators have been searching for them ever since they were stolen from the Judy Garland Museum in 2005.

From Denmark and Iceland to the United States and Canada, Josh Gates treads into Viking territory in an effort to unlock answers to their most enduring secrets, including how they attained and sustained their power and how far they really traveled.

Josh traces the Vikings' westward expansion from the volcanic landscape of Iceland to a mysterious settlement in Greenland; he aims to find out if the Vikings landed in the United States more than 500 years before any other Europeans.

Josh travels to his ancestral home of Great Britain to explore the origins of Stonehenge. From high in the air to deep under the sea, he finds an unexpected network of monuments that could have inspired one of history's most mystical locations.

Josh travels across the United States to find the treasures featured in the cryptic 1982 book "The Secret"; Josh meets with members of the book's cult following, who each think they are on the verge of locating one of the 10 remaining treasures.

Josh immerses himself in Wild West lore on a quest to find Butch Cassidy's missing money; he traces the iconic outlaw's footsteps through Colorado, Utah and Nevada, eventually learning he may have to find the man himself to locate the lost loot.

Josh travels through the jungles of Ecuador to explore the watery depths of Tayos Cave for a legendary set of metal plates believed to be created by an advanced ancient civilization.

Josh journeys through the land of the Nile to uncover the buried secrets of three of the most powerful and elusive women in ancient Egypt -- Hatshepsut, Nefertiti and Cleopatra.

Josh Gates continues his journey through Egypt to unearth the secrets and possibly the final resting places of Nefertiti and Cleopatra.

Josh Gates' Global Game Show goes all over the planet but this time he's going out of this world by giving his contestants the opportunity to win big on the topic of extraterrestrials. Players at home can win a big prize too, plus a bonus look at footage that never aired in the original Expedition Unknown episodes.

Josh Gates attempts to uncover a treasure left behind by the Aquarian Foundation, an isolated, insidious cult led by the notorious leader known as Brother XII.

Josh Gates sets off for gold rush country to search for the lost fortune of a notorious Montana sheriff. During his investigation, Josh explores hidden cave systems and blows open a mine that's been sealed for over a century.

Josh Gates travels to Hungary to join three separate archeological teams looking for the lost tomb of Attila the Hun. Legends and ancient texts lead the search from the bottom of the Danube to the mountain forests just outside of Budapest.

Josh travels to Greece to explore Europe's first superpower and how it disappeared on the Mediterranean island of Crete.

Josh Gates joins leading archeologists as they investigate America's first missing-persons case, The Lost Colony of Roanoke. Following newly discovered clues, he'll reach new heights as he digs for answers to this over 400-year-old mystery.

One of the most iconic creatures of the Ice Age, the Woolly Mammoth, has gone extinct and Josh and a team search for enough DNA to clone a woolly mammoth.

Josh retrieves bone samples from the massive Batagay crater and gets DNA results to find out if the woolly mammoth will walk the earth again.

Josh Gates sets off on an expedition to crack the mystery behind the perpetrator of the only unsolved plane hijacking in U.S. history.

Josh Gates sets off deep into the Australian Outback, following the footsteps of legendary explorer Harold Lasseter, who claims to have found a vast field of gold.

Josh Gates ventures to Australia's island state of Tasmania to investigate sightings of the supposedly extinct Thylacine, also known as the Tasmanian Tiger.

Josh Gates retraces the footsteps of the legendary Captain Kidd in the hopes of finding his buried treasure; from the East Coast to the Caribbean, the search takes him to a real pirate shipwreck and to the island hideout of the notorious buccaneer.

Josh Gates journeys to the wilds of Namibia to embark on a treacherously deep dive in Lake Otjikoto for a long lost World War I treasure.

Josh Gates follows in the footsteps of Indiana Jones as he searches in Israel and Ethiopia for the lost Ark of the Covenant, the sacred relic said to contain the Ten Commandments and possess extraordinary powers.

Gates tries to find the lost treasure of King John. He explores the marshlands of England to find the king's crown jewels, which were swept away in a freak tidal surge in the 13th century.

Gates hunts for the hidden treasure of Erwin Rommel, a Nazi general who plundered the wealth of North Africa as his tank corps fled the continent. The search brings Gates to never-explored underground lakes and undersea relics of World War II.

To find the plundered riches of the Roman Empire, Gates looks for the tomb of the Visigoth king Alaric in Italy. The hunt extends from the capital of Rome to the southern city of Cosenza, where the mayor is spearheading an effort to find the tomb.

Gates travels to India in search of Dwarka, a mythical kingdom swallowed by the ocean. To find evidence that the golden city is real, Gates dives into the Arabian Sea and visits a dig site.

Gates travels down to the coast of Florida and to Cuba in search of a sunken treasure from a fleet of Spanish ships that were sunk in 1715; the hunt takes him deep into the Atlantic and the National Archives of Cuba.

In the Season 2 premiere, Gates travels to England, Wales and Scotland to explore the legend of King Arthur.

Josh journeys into the heart of Mongolia in search of the fabled lost tomb of Genghis Khan. After encountering harsh weather and resistance from locals, can Josh enter Mongolia's "Forbidden Zone" to locate the burial grounds?

Josh explores the ocean floor of the Cayman Islands and the coasts of North Carolina in his quest to find the lost treasure of the legendary pirate Blackbeard.

Gates digs up the truth behind vampire legends. His travels start at Curtea Veche in Romania, where he learns about Vlad the Impaler, the inspiration behind Dracula. Then off to Marotinu de Sus, a Romanian village, where six men desecrated a fresh grave believing it to be a "strigoi". He ends in Perperikon, Bulgaria to examine a supposed vampire grave.

Josh travels the English countryside on a mission to learn if Robin Hood was a real man and if he's the hero from the legends or a murderous outlaw. He dives into 800 years of ballads and stories at London's British Library, explores tunnels and caves beneath Nottingham, and joins historians in search of Hood's grave, first in Kirklees Priory, Yorkshire, and lastly at a churchyard in Loxley, where researchers believe an outlaw named Roger Godberd who was the real Robin Hood is buried.

Gates searches for the treasure of art dealer Forrest Fenn, who after being diagnosed with terminal cancer hid his fortune, worth $2 million, deep in the Rocky Mountains north of his hometown of Santa Fe, New Mexico.

Gates goes to the ruins of Yonaguni Island, the westernmost Japanese island on the East China Sea, to determine whether the undersea structures are geologic or man-made. The Yonaguni Monument discoverer, Kihachiro Aratake, dives with Josh, showing him the undersea area with cut steps leading up to a level platform. Josh takes a rock sample for geologic analysis. In Osaka, archaeologist Michio Maezano shows Josh an ancient rock tomb. It proves that ancient people could have carved the Yonaguni structures, then an earthquake could have sunk them.

Gates searches for the True Cross. This relic, said to have mystical healing powers, has been lost for 2,000 years. Gates visits Jerusalem, Israel and Istanbul, Turkey, to find if the cross or fragments of it still exist. The cross was cut into three pieces on the orders of Empress Helena. He examines this legend at the Church of the Holy Sepulchre in the Old City where the tomb of Jesus is located and where he was crucified. Then he learns more about crucifixion in Tel Aviv, and discovers ancient cross wall carvings at the Church of the Nativity in Bethlehem.

Gates hunts for the Heart of Suleiman the Magnificent, ruler of the Ottoman Empire in the 16th century. When Suleiman died in 1566 during a battle in Hungary, his body was brought back to Istanbul, but not before a ritual was performed involving the removal of his heart being placed in a gold container and buried beneath his tent. The Sultan's followers believed his heart has magical powers and continues to beat, waiting to be returned to its host. The town of Tubek was built over the burial site to honor the Sultan.

Gates travels to South Africa to search for the missing Kruger Millions, the gold coins of the country's entire financial reserve. The treasure vanished overnight after South African President Paul Kruger loaded the hoard on a train and it vanished overnight in 1900 during the Boer War.

Gates searches for a lost city in the Kalahari Desert in Africa. First discovered by circus pioneer The Great Farini in 1885, he supposedly came across the ruins of a lost city half buried in the scorching sands. Those who followed in his footsteps came up empty-handed and claimed it a hoax, while even some vanished. Today, a modern explorer launched an all new expedition which Gates joins.

Gates searches for Yamashita's Gold, millions of dollars in Southeast Asian gold and jewels that was looted by Japan and covertly transported to the Philippines under the direction of Japanese general Tomoyuki Yamashita during World War II. The fortune was hidden by gangsters, military generals, and a secret organization in tunnels and caves somewhere in the conquered country. But the treasure was lost when the Allies won the war, until a treasure hunter found part of it in 1970 and has been searching for it ever since.

Josh embarks on a journey around the world to uncover mysteries about Christopher Columbus. First, Josh looks for Columbus' legendary ship, the Santa Maria, and later ventures to find the real remains of the explorer.

Gates searches high in the Himalayas for Shangri-La. He learns of its legend as a hidden utopia. In the most remote reaches of Nepal near the border of Tibet is an area known as the Mustang, an area that's been closed off to the outside world and the passage of time. But now Josh and his fellow archaeologists have been granted access to explore it. He finds out secrets hiding inside its sky caves, man-made chambers carved into cliff walls.

After learning about the ancient Buddhist realm of Shambhala in Kathmandu and exploring the skycaves, Gates continues his search for the real Shangri-La. This time, he discovers a rock tower used for human burials and filled with bones dating back to 800 A.D. Next, he travels to Lo Manthang for another day of investigation in the Martzon area to climb a cave system called Pumamba, which is linked to the legend. Then he heads to Chuusang, a remote cave monastery that has never been excavated before.

Josh searches for the mysterious civilization of Teotihuacan, a lost empire left behind in Mexico with soaring pyramids dedicated to the gods, imposing temples, and a treasure trove of cryptic art. He seeks answers on who these indigenous people were, finds out their secrets that have been buried for 2,000 years, and what they left behind.

Josh searches for the lost mummy of Atahualpa, the last great king of the Incan empire, hidden high in the Andes Mountains and in the jungles and highlands of Ecuador. His reign ended when Spanish Conquistador Francisco Pizarro murdered him and brought the Inca civilization to an end. But the emperor obtained great power and wealth, even in death. His body was mummified in a sacred ritual to give him supernatural sway over the world of the living. Then, his body vanished. Archaeologists have been searching ever since.

Josh exposes Nazi secrets as he searches for the lost fortune of war criminal Adolf Hitler's billions in gold, art and relics stolen on his orders by the Nazis to suport his doomsday weapon during World War II. They also built networks of hidden tunnels and bunkers. Today, archaeologists use modern technology to recover treasure and excavate the underground legacy of the Third Reich. On his journey, Josh joins them, first finding answers in Germany, identifying gold in a Nazi train hidden inside a mountain in Poland. Then, in Austria, he explores a subterranean facility to a top secret lab to build a war machine.

The search for Nazi secrets and their stolen gold continues in the darkest corners of history; both underground and underwater. This time, Josh dives for relics of Nazi foreign minister Joachim Von Ribbontrop who dumped his family's entire fortune into the dark and deep waters of Lake Fuschlsee in the Austrian Alps. In order to learn if the Nazis where building an atomic bomb, he starts his quest for answers in Hitler's hometown of Linz. Then, he stops at the Mauthausen-Gusen concentration camp memorial in Sankt Georgen an der Gusen to pay his respects to the hundreds of thousands who perished here. He also explores 25 miles of tunnel under the Bergkristall complex, the largest secret underground facility ever built. It was designed by SS General Hans Kammler to oversee the Nazis nuclear project.

In the 2-hour season premiere of Expedition Unknown, adventurer Josh Gates hunts down new evidence on the disappearance of Amelia Earhart. He treks to uncharted tribal lands in Papua New Guinea and ends his journey in Fiji, hoping to uncover the pilot’s remains.

Josh travels to the remote and land-mine-riddled jungles of Cambodia to investigate the lost city of the Khmer Empire and search for a mystical relic that gave its god king the power to incinerate his enemies more than 1,000 years ago.

Josh is on the trail of Russia’s missing Amber Panels, priceless pieces of art stolen by the Nazis during WWII. After starting in St. Petersburg, Russia, and getting exposed to the local culture, Josh makes a brief pit stop in Berlin to marvel at the city’s amazing turnaround since the end of the Cold War.

Josh tries putting the legend of Jesse James' missing gold to rest, as he searches the American Midwest, searching for the treasure.

Josh Gates travels through Peru in search for the legendary Incan lost city of Paititi. His journey takes him from the historic Cusco, to the heights of Machu Picchu, and finally into the Amazon's dark and mysterious jungles.

Josh travels to England and Norway to unlock the secrets of the Viking sunstone, a mystic crystal the Vikings used to conquer the seas. Before testing it, he explores a crypt in a Nordic church and descends 1,000 feet into a deserted mine.

Josh joins archaeologists in Panama as they search for the Satisfaction, the sunken flagship of legendary pirate Captain Henry Morgan. But first he must understand the man behind the rum who attacked Panama City looking for treasure. He also searches one of many shipwrecks near Fort San Lorenzo at the reef, where Morgan's ship ran aground.

Josh scours the Virginia backcountry in search of the legendary Thomas Beale treasure, which would be worth millions today. Since encrypted codes are hiding its whereabouts, Josh takes a detour to Philadelphia to uncover missing pieces of the puzzle.

While investigating the fall of the remarkable Mayan Empire, Josh unearths human skulls and ancient Mayan sacrificial altars in the caverns underneath the jungles and ruins of Mexico.

Josh travels to Peru to investigate the giant geoglyphs drawn into the earth by the ancient Nazca tribes and while studying newly found lines joining a Nazca psychadelic ritual, Josh discovers the meaning behind the mysterious tracings.

Josh searches for the missing mystical Honjo sword in Japan in ancient shrines hidden in the mountains and underground tunnels.

The ancient cursed Golden Bell of King Dhammazedi.

Josh answers questions from viewers, reveals new developments in intriguing unfinished investigations, and pulls back the curtain to reveal what really happens behind the scenes in this special episode of Expedition Unknown.

Host Josh Gates counts down his Top 10 most dangerous adventures from Season 1.

Josh visits Portugal and Haiti to discover whether Christopher Columbus was history's greatest hero or villain. He also hopes to find the remnants of Columbus' legendary flagship, the Santa Maria.

The search for Christopher Columbus continues with finding his missing remains. Gates follows his five-century voyage across two continents to search for his final resting place believed to be at Columbus Lighthouse in Santo Domingo, Dominican Republic or at Cathedral of Saint Mary of the See in Seville, Spain, both countries laying claim to his bones.

Inspired by his adventures while filming Expedition Unknown, Josh shares tips on the best way to travel in this special episode. Josh also features bonus scenes and hilarious outtakes from some of his recent expeditions.

Josh Gates and his cameraman, Evan B. Stone, count down their top ten close calls and strange situations, featuring bonus, behind the scenes footage from Expedition Unknown's investigations.

Josh travels to Mongolia's 'Forbidden Zone' to find Genghis Khan's tomb.

Josh Gates and his crew gather, along with archaeologists Dr Oren Gutfeld, to unravel more of teh mysteries of the Dead Sea Scrolls.

Josh Gates and his expedition team reconvene once more to dig deeper into their search for the treasure of the Copper Scroll, and reveal more discoveries and exclusive, never-before-seen footage.