Secrets of Mexico's Underworld

1Hunt for World War II Hellships

42 minJun 24, 2026

Josh searches for lost Allied soldiers on the Hofuku Maru, a Japanese Hellship.

2Finding World War II's Lost Prisoners

42 minJul 1, 2026

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.

3Death Jars of Laos

42 minJul 8, 2026

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.

4Sunken City of Pirates

42 minJul 15, 2026

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.

5Secrets of Mexico's Underworld

42 minJul 22, 2026Now viewing

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.

6Inca Treasure Tunnels

42 minAug 5, 2026

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.

7Chasing Civil War Gold

42 minAug 12, 2026

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.