Expedition Unknown - The Secret

Seizoen: 4 - Aflevering: 4 / 84 - Eerst uitgezonden: 17 januari 2018 - Episode ID: 1606299

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.