Originally produced for the History Channel series History's Mysteries, Where's Jimmy Hoffa? explores the strange disappearance of the influential labor leader. Head of the Teamsters Union, Hoffa was last seen in a Detroit parking lot on July 30, 1975. Hoffa rose the ranks from laborer to leader and on the way became involved with big business, underworld principals, and government. Controversy, rumors, and mystery continue to envelop Hoffa's disappearance. Is he dead or alive? Where's Jimmy Hoffa? explores various theories through authentic film footage and insightful interviews with John Bell, chief of the FBI Detroit branch, and author Dan Moldea.