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Expedition Unknown
Season 4 · Episode 4
The Secret
7.01h 0mJanuary 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.
Episodes
- Episode 1Viking Secrets
- Episode 2Vikings in America
- Episode 3Origins of Stonehenge
- Episode 4The Secret
- Episode 5Butch Cassidy's Lost Loot
- Episode 6Hunt for the Metal Library
- Episode 7Great Women of Ancient Egypt
- Episode 8Egypt's Lost Queens
- Episode 9Global Game Show: Out of This World
- Episode 10Secrets of Brother XII