Pennsylvania, 1956. Frank Sheeran, a war veteran of Irish origin who works as a truck driver, accidentally meets mobster Russell Bufalino. Once Frank becomes his trusted man, Bufalino sends him to Chicago with the task of helping Jimmy Hoffa, a powerful union leader related to organized crime, with whom Frank will maintain a close friendship for nearly twenty years.

A portrait of union leader James R. Hoffa, as seen through the eyes of his friend, Bobby Ciaro. The film follows Hoffa through his countless battles with the RTA and President Roosevelt.

Jimmy Hoffa was one of the most powerful men in America. In 1974 he disappeared, never been seen again: one of the greatest mysteries of the 20th century.