Revealing the secrets of the Mafia's most notorious members, beginning with Sam Giancana, who was associated with the Kennedys, Frank Sinatra and the CIA.

A close associate of longtime Teamsters President Jimmy Hoffa and associated with the Chicago Outfit, Alan Dorfman embezzled millions for the mob and himself until he was violently murdered in 1983.

The story of Tony Spilotro, who protected the Chicago Mafia's interests in the casinos of Las Vegas and became a target for the FBI.