The Secret Expedition Unknown : Season 4 Episode 4
TV-PG (self-applied) Travel Channel 1h 00m int(0)
Aired: January 17th, 2018 @ 9:00 PM EST on Travel Channel
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.