Josh Gates digs into the night's Expedition Unknown and Expedition X, including never-before-seen footage from the X team's trip into Mammoth Caves and in-depth interviews with guest investigators about Josh's search for Boudica's lost treasure.

Josh Gates and the Expedition X team review ghostly evidence and never-before-aired footage from the jungles of Brazil. Then Josh and his crew delve into theories of what causes so many mysterious occurrences in the Bermuda Triangle.