
A mysterious plague, the Purple Death, ravages the earth. Dr. Zarkov, investigating in his spaceship, finds a ship from planet Mongo seeding the atmosphere with dust. Sure enough, Ming the Merciless is up to his old tricks. So it's back to Mongo for Flash, Dale, and Zarkov.
Directed by Ford Beebe, Ray Taylor, Flash Gordon Conquers the Universe leans on a strong ensemble — Buster Crabbe, Carol Hughes, Charles Middleton — to carry a story that balances spectacle with character.
The film landed with audiences for its craft and performances, and remains one of the most talked-about science fiction titles of 1940.
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