Amateur and professional bodybuilders prepare for the 1975 Mr. Olympia and Mr. Universe contests as five-time champion Arnold Schwarzenegger defends his Mr. Olympia title against Serge Nubret and the shy young Lou Ferrigno.
Starring Arnold Schwarzenegger, Lou Ferrigno, Mike Katz, Serge Nubret, Franco Columbu, Ed Corney, Ken Waller, Robbie Robinson, Marianne Claire, Roger Callard