Episode 1 | The Quest for King Arthur

Josh traverses England, Wales, and Scotland, wading through history and legend to search for evidence of a real King Arthur. In Wales, Josh has a close call rappelling into the hundreds of miles of underground caves.

Episode 2 | Genghis Khan's Tomb

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?

Episode 3 | Blackbeard's Hidden Gold

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.

Episode 4 | Hunting Vampires

Josh scours Eastern Europe to confront both the ancient origins and modern legacy of the vampire legend. Josh's investigation leads him to a Romanian cemetery, but will he leave in one piece when angry locals confront him?

Episode 5 | The Real Robin Hood

Josh journeys across England uncovering the true stories behind the legendary Robin Hood. Josh explores underground tunnels that Robin used to escape confinement and he finds what appears to be Robin's final resting place.

Episode 6 | Raw & Unfiltered

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.

Episode 7 | Finding Fenn's Fortune

Josh joins a treasure hunt searching for a $2,000,000 treasure planted in the modern day. He attempts to decode the clues of the treasure's location by following a cryptic poem, leading him deep into the harsh Rocky Mountains.

Episode 8 | Most Dangerous Moments

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

Episode 9 | Secrets of Christopher Columbus

In part 1 of a two-part special, Josh visits Portugal & Haiti to discover whether Christopher Columbus was a hero or history's greatest villain. He hopes to find the remnants of Columbus's legendary flagship, the Santa Maria

Episode 10 | Columbus Unearthed

In part 2 of a two-part special, Josh travels from the Dominican Republic and Spain in an attempt to solve the looming mystery of where the bones of Christopher Columbus are truly buried.

Episode 11 | Japan's Atlantis

Josh travels to Japan's remote Yonaguni Island to explore an underwater phenomenon described as Japan's Atlantis. Josh dives into the waters of the Pacific Rim to explore this remarkable site.

Episode 12 | True Cross of Christ

Josh pursues lost fragments of the True Cross of Jesus Christ. He visits the Holy Land to trace the whereabouts of wood from the crucifixion, until new evidence leads him to the underside of the ancient city of Istanbul.

Episode 13 | Legendary Stories: The Real Lewis & Clark

Josh Gates shares 3 true, unfiltered stories of people, places and events that evolved into legendary stories. Lewis and Clark are America's greatest pioneers, but Josh reveals all the scandalous details of this epic expedition.

Episode 14 | The Sultan's Heart

Josh travels to Turkey & Hungary on a quest to find the missing golden box containing the heart of beloved Ottoman ruler Suleiman the Magnificent. The hunt is on to locate the artifact before the 450th anniversary of his death.

Episode 15 | Africa's Gold Hoard

Josh travels to South Africa in search of former President Kruger's missing gold cache. Josh evades dangerous poachers and meets the Shangaan tribe en route to the treasure that may be hiding in the African wilderness.

Episode 16 | Weird, Wild and Off the Rails

Crazy outtakes and never-before-televised footage are compiled in this special episode of the weirdest, wildest and most hilarious off the rails moments captured on camera during the first season of Expedition Unknown.

Episode 17 | Kalahari Desert's Lost City

Josh traverses Africa's Kalahari Desert, looking for a fabled lost city.

Episode 18 | Yamashita's Gold

Josh travels to the Philippines searching for Yamashita's Gold, a treasure that has been hidden since World War II. When the cave Josh explores quickly fills with water, will he escape with a piece of history before he's trapped?

Episode 19 | Columbus: Legend or Liar?

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.

Episode 20 | What to Know Before You Go

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.