Episode 1
Hunt for World War II Hellships
42m
Josh searches for lost Allied soldiers on the Hofuku Maru, a Japanese Hellship.
Where to watch Expedition Unknown
TV series
Expedition Unknown
2015TV-PG18 seasons8.1 / 10
The adventures of Josh Gates as he investigates unsolved iconic stories across the globe.
Streaming, rental and purchase options
Where to watch in United States
Checked Sep 3, 2026
Expedition Unknown is available to stream on DirecTV On Demand, Discovery+, Discovery+ (Via Amazon Prime), Disney+, HBO (Via Hulu), HBO Max, HBO Max (Via Amazon Prime), Hulu, Philo, Spectrum On Demand, and YouTube TV in United States. You can also buy it from Amazon, Apple TV, and Fandango at Home. Use the direct links below to open the provider.
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Synopsis
The adventures of Josh Gates as he investigates unsolved iconic stories across the globe.
Season 18 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
Finding World War II's Lost Prisoners
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 of Defense mission, recovering potential remains of American POWs.
Where to watch Expedition Unknown
Episode 3
Death Jars of Laos
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 uncover the secrets of this ancient, lost civilization.
Where to watch Expedition Unknown
Episode 4
Sunken City of Pirates
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 of Black Bart, the King of Pirates.
Where to watch Expedition Unknown
Episode 5
Secrets of Mexico's Underworld
42m8.5 / 10
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 and finds thousands of ritual offerings that may solve the mystery.
Where to watch Expedition Unknown
Episode 6
Inca Treasure Tunnels
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 the tunnels and find priceless ancient treasures.
Where to watch Expedition Unknown
Episode 7
Chasing Civil War Gold
42mfinale
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.
Where to watch Expedition UnknownEpisode information updated Sep 18, 2026
More about Expedition Unknown
Cast
Josh GatesSelf - Host
Orson MochizukiHonjo ShigenagaCharles CoanCotton Mather (uncredited)
Parker SchnabelHimselfProduction details
- Status
- Returning Series
- Series type
- Documentary
- Episodes
- 168
- Original language
- English
Networks & production
Travel ChannelUnited States
Ping Pong ProductionsUnited States
Themes
historytreasure hunt
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