Spaceship to the Unknown
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.
Buster Crabbe, Jean Rogers, Frank Shannon, Charles Middleton, Priscilla Lawson, Richard Alexander, Jack 'Tiny' Lipson, James Pierce, Earl Askam, Richard Tucker, George Cleveland, Lon Poff, Charles McMurphy, Theodore Lorch, Duke York
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