Expedition Files

Produced by Ping Pong Productions for Discovery Channel, Past Preservers provided our expert, Crime Historian Christian Cipollini.

Josh Gates embarks on a time-travelling quest, taking us into the past to solve history’s most enduring mysteries. Gates reveals fresh evidence and striking, new revelations that could rewrite history as we know it. In the season premiere, Gates examines an explosive new theory about the fate of vanished Teamsters leader Jimmy Hoffa. He also reveals the extraordinary artifact that may finally end the age-old hunt for the Holy Grail and sets sail to unravel a maritime mystery – the disappearance of German inventor Rudolf Diesel, the man whose engines changed the world.