Expedition Unknown
Expedition Unknown is a TV show on Channel 9. The program has been available since 2025. A total of 18 episodes have been broadcast, most recently in June 2026.
Last episode
Expedition Unknown
Josh dives off Tanzania for the lost emporium of Rhapta, known as Africa's Atlantis. He searches ancient shipwrecks and explores mysterious ruins visible only at low tide.
Catching up on Expedition Unknown?
Don't want to miss an episode anymore? Set up a free alarm and receive an email when new episodes are available. Handy!
Josh joins a restoration of a British Barracuda bomber and searches for wreckage in the Arctic Circle to honor the aircraft that took out the largest Nazi warship ever built.
Josh chases riches stolen by the Doan Gang, British loyalists from the Revolution. He digs for plundered coins and searches a legendary cave hideout in Pennsylvania.
Josh's chase for Alexander's fortune ramps up across four countries. He explores flooded ruins in Egypt and investigates evidence that the body may lie in Venice.
Josh hunts history's biggest prize: Alexander the Great's tomb. He dives Egypt's coast for the Royal Quarter and tunnels beneath Alexandria to find the conqueror's remains.
Season 8
Josh joins a team scouring the ocean floor hundreds of feet below to find a lost aviation treasure -- the only XP5Y-1 still in existence.
Josh investigates America's daring response to Pearl Harbor, which destroyed a vital Japanese base in the South Pacific.
A clandestine meeting with a Cambodian looter puts Josh on the trail of multi-million-dollar stolen monuments.
Josh chases the treasure of legendary Viking Harald "Bluetooth" Gormsson. The discovery of a mysterious gold artifact sends Josh on a journey through Scandinavia.
Josh investigates one of the 20th century's biggest heists – looting of Cambodian statues worth hundreds of millions. Chasing new leads, Josh rappels into a crumbling pyramid.
Plunging hundreds of feet below ground, Josh explores Spain's treacherous La Garma cave system and finds a floor littered with human remains more than 1,000 years old.
Diving into Lake Superior, Josh has brand-new intel that may finally solve a 100-year-old mystery: the resting place of two WW1 minesweepers.
Josh finds treasure from the greatest score in pirate history. The most feared pirate of his time, Henry Avery stole a fortune worth more than $100 million today.
Josh travels to the Holy Land to find a lost city where Jesus performed many miracles and is also home to three apostles. Josh reveals an ancient inscription.
Josh scales a mountain to learn how the Kingdom of Kush conquered Egypt and braves the murky waters for one more dive to find the king's mummified remains.
Josh Gates travels to the Kingdom of Kush to dive the flooded pyramid tomb of a king. The murky water provides zero visibility, and the pyramid is at risk of collapse.
Season 2
Josh journeys to Mongolia's Forbidden Zone to find Genghis Khan's tomb.
Josh hunts for a two million dollar treasure hidden deep in the Rocky Mts.