Episode guide
Expedition Unknown: Season 18
7 episodes · premiered Jun 24, 2026
TMDB has no overview for this season.
- Episode 1: Hunt for World War II Hellships Jun 24, 2026 · 42m Josh searches for lost Allied soldiers on the Hofuku Maru, a Japanese Hellship.
- Episode 2: Finding World War II's Lost Prisoners Jul 1, 2026 · 42m A deep-water dive leads to the historic discovery of a lost WWII hell ship, where an estimated 1,000 soldiers made the ultimate sacrifice. Given rare access, Josh assists a U.S. Department…
- Episode 3: Death Jars of Laos Jul 8, 2026 · 42m Josh Gates treks into the remote jungles of Laos to investigate the mysterious Plain of Jars. Navigating landscapes still littered with unexploded ordnance, he uses advanced technology to…
- Episode 4: Sunken City of Pirates Jul 15, 2026 · 42m A first-of-its-kind sonar survey reveals a submerged pirate lair located off the coast of Jamaica. Using groundbreaking photogrammetry, Josh dives in to hunt for the $50M stolen treasure…
- Episode 5: Secrets of Mexico's Underworld Jul 22, 2026 · 42m Josh joins archeologists as they bushwhack through thick jungles and rappel into vast caves in search of the lost Zoque culture. Deep underground, the team pushes through flooded sections…
- Episode 6: Inca Treasure Tunnels Aug 5, 2026 · 42m Josh helps discover and explore a labyrinth of lost tunnels; he dodges traffic to assist in a first-ever radar scan below the busy streets of Cuzco, Peru; he joins them as they push into…
- Episode 7: Chasing Civil War Gold Aug 12, 2026 · 42m Josh hunts for millions in missing Confederate gold. First, he follows a new lead and explores a wagon train robbery site where gold and silver coins vanished. Then, an eyewitness account…