Flash Gordon, Dale Arden and Dr. Alexis Zarkov visit the planet Mongo to thwart the evil schemes of Emperor Ming the Merciless, who has set his planet on a collision course with Earth.
Featured in the lyrics "Science Fiction, Double Feature" in The Rocky Horror Show.
Director: Frederick Stephani
Buster Crabbe as Flash Gordon
Jean Rogers as Dale Arden
Charles Middleton as Ming the Merciless
Priscilla Lawson as Princess Aura
Frank Shannon as Dr Alexis Zarkov