Vanished: Jimmy Hoffa, Holy Grail, Inventor Rudolf Diesel (S03E01)
S03E01
What truly occurred with union leader Jimmy Hoffa? Can today's technology finally unveil the secrets of the Holy Grail? Also, was inventor Rudolf Diesel's death at sea genuine, or did he orchestrate his own vanishing act?
Show
Expedition Files
Episode
S03E01
Air Date
Nov 05, 2025