Expedition Unknown

4x1
Viking Secrets
Episode overview

27, 2017

From Denmark and Iceland to the United States and Canada, Josh Gates treads into Viking territory in an effort to unlock answers to their most enduring secrets, including how they attained and sustained their power and how far they really traveled.

4x2
Vikings In America
Episode overview

03, 2018

Josh traces the Vikings' westward expansion from the volcanic landscape of Iceland to a mysterious settlement in Greenland; he aims to find out if the Vikings landed in the United States more than 500 years before any other Europeans.

4x3
Origins of Stonehenge
Episode overview

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.

4x4
The Secret
Episode overview

17, 2018

Josh travels all over the US to find the treasures featured in The Secret, a cryptic book published in the 1980s. He meets with members of the book's cult following, who each think they're on the verge of finding one of the 10 remaining treasures.

4x5
Butch Cassidy's Lost Loot
Episode overview

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 .. show full overview

4x6
Hunt For The Metal Library
Episode overview

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.

4x7
Great Women of Ancient Egypt
Episode overview

07, 2018

Josh Gates strives to uncover the buried secrets of three of the most powerful and elusive women in ancient Egypt -- Hatshepsut, Nefertiti and Cleopatra; a facial reconstruction project is commissioned to reveal the face of King Tut's mother.

4x8
Egypt's Lost Queens
Episode overview

14, 2018

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

4x100
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Episode overview

21, 2018