Season 4

January 10, 2018

Josh travels to his ancestral home of Great Britain to explore the origins of Stonehenge. From high in the air to deep under the sea, he finds an unexpected network of monuments that could have inspired one of history's most mystical locations.

January 17, 2018

Josh travels across the United States to find the treasures featured in the cryptic 1982 book "The Secret"; Josh meets with members of the book's cult following, who each think they are on the verge of locating one of the 10 remaining treasures.

January 24, 2018

Josh immerses himself in Wild West lore on a quest to find Butch Cassidy's missing money; he traces the iconic outlaw's footsteps through Colorado, Utah and Nevada, eventually learning he may have to find the man himself to locate the lost loot.

January 31, 2018

Josh travels through the jungles of Ecuador to explore the watery depths of Tayos Cave for a legendary set of metal plates believed to be created by an advanced ancient civilization.

February 7, 2018

Josh journeys through the land of the Nile to uncover the buried secrets of three of the most powerful and elusive women in ancient Egypt -- Hatshepsut, Nefertiti and Cleopatra.

February 14, 2018

Josh Gates continues his journey through Egypt to unearth the secrets and possibly the final resting places of Nefertiti and Cleopatra.

February 21, 2018

Josh Gates' Global Game Show goes all over the planet but this time he's going out of this world by giving his contestants the opportunity to win big on the topic of extraterrestrials. Players at home can win a big prize too, plus a bonus look at footage that never aired in the original Expedition Unknown episodes.

February 28, 2018

Josh Gates attempts to uncover a treasure left behind by the Aquarian Foundation, an isolated, insidious cult led by the notorious leader known as Brother XII.