Expedition Unknown S4E4: The Secret
- Aired: 2018-01-17
- Time: 21:00:00
- Runtime: 60 minutes
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Overview
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.