Watch Spaceship to the Unknown (1966): stream Spaceship to the Unknown (1966) on Amazon Prime, Amazon Prime Video with Ads, Plex. Compare all streaming options for this movie on WhereCanIWatch.tv.
Spaceship to the Unknown
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You can watch Spaceship to the Unknown (1966) for free on Plex.
A heavy condensation of the original serial compresses the original thirteen episodes into an efficient 97 minute feature. Disaster seems imminent when scientists discover that the planet Mongo is about to crash into Earth. Luckily, heroic young Flash Gordon is on hand to lead an investigative mission into outer space and onto the speedily approaching planet. There, he and his best girl, Dale, who is along for the ride, learn that Ming, the devious ruler of Mongo, has purposely put the planet on a collision course with Earth, and only Flash can stop him.
Spaceship to the Unknown is a film that explores themes of princess, prince, king. It also touches on shark and tyrant and evil dictator.
Directors
Frederick Stephani, Ray Taylor
Cast
Buster Crabbe, Jean Rogers, Frank Shannon, Charles Middleton, Priscilla Lawson, Richard Alexander, Jack 'Tiny' Lipson, James Pierce, Earl Askam, Richard Tucker
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Spaceship to the Unknown
You can watch Spaceship to the Unknown (1966) for free on Plex.
Directors
Frederick Stephani, Ray Taylor
Cast
Buster Crabbe, Jean Rogers, Frank Shannon, Charles Middleton, Priscilla Lawson, Richard Alexander, Jack 'Tiny' Lipson, James Pierce, Earl Askam, Richard Tucker
4 options ranked by value · 🇺🇸 United States
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princess · prince · king · shark · tyrant · evil dictator
Spaceship to the Unknown is streaming on Amazon Prime. Spaceship to the Unknown is streaming on Amazon Prime Video with Ads. Watch Spaceship to the Unknown for free on Plex. Watch Spaceship to the Unknown for free on Plex Channel. Availability last verified April 13, 2026.