Expedition Unknown
Expedition Unknown chronicles the adventures of Josh Gates as he investigates iconic mysteries across the globe. Gates begins by interviewing ...More About Expedition Unknown
- 2015-2026
- 17 seasons
- Travel Channel
- Action & Adventure, Suspense, Reality
- TV-PG
Expedition Unknown chronicles the adventures of Josh Gates as he investigates iconic mysteries across the globe. Gates begins by interviewing ...More About Expedition Unknown
Season 17 Episode Guide
7 Episodes 2026
Episode 1
Hunt for World War II Hellships
Wed, Jun 24, 2026 49 mins
Josh searches for more than 1,000 POWs lost in the Pacific Theater. He dives to find lost Allied soldiers on the Hofuku Maru, a notorious Japanese "Hellship." Then, Josh receives unprecedented access to join a U.S. Department of Defense recovery mission.
Episode 2
Finding World War II's Lost Prisoners
Wed, Jul 1, 2026 48 mins
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 of Defense mission, recovering potential remains of American POWs.
Episode 3
Death Jars of Laos
Wed, Jul 8, 2026 48 mins
Deep in the jungles of Laos, Josh must detonate unexploded ordnance from the Vietnam War before he can search for a lost culture's burial jars. Cutting-edge 3D scanning and facial recognition tech could finally shed light on this mysterious civilization.
Episode 4
Sunken City of Pirates
Wed, Jul 15, 2026 42 mins
A first-ever sonar survey reveals a submerged pirate lair located off the coast of Jamaica. Using groundbreaking photogrammetry, Josh dives in to hunt for the stolen treasure of Black Bart, the King of Pirates -- a fortune worth $50 million.
Episode 5
Secrets of Mexico's Underworld
Wed, Jul 22, 2026 62 mins
Josh joins archaeologists as they bushwhack through thick jungle and rappel into vast caves in search of the lost Zoque culture. Deep underground, the team pushes through flooded sections and finds thousands of ritual offerings that may solve the mystery.
Episode 6
Inca Treasure Tunnels
Wed, Aug 5, 2026 42 mins
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 the tunnels and find priceless ancient treasures.
Episode 7
Chasing Civil War Gold
Wed, Aug 12, 2026 42 mins
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 points to the location of Jefferson Davis's lost war chest.
Episode 7
Chasing Civil War Gold
Wed, Aug 12, 2026 42 mins
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 points to the location of Jefferson Davis's lost war chest.
Episode 13
Shark Secrets
Wed, Jul 29, 2026 42 mins
Josh Gates investigates the USS Indianapolis disaster, which led to the deadliest shark attack in history, explores the mystery of Scotland's Stronsay Beast, and examines ancient remains that may reveal the earliest confirmed shark attack ever recorded.