Spaceship to the Unknown (1966) is a TV Movie, Science Fiction, Action, Adventure film that follows 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. Currently, you can watch Spaceship to the Unknown on Amazon Prime Video, Amazon Prime Video with Ads, Amazon Video, Apple TV Store. Streaming availability may vary by country and platform over time. It has a user rating of 7.3 out of 10 from 3 votes. Fans of tv movie movies may also want to explore similar titles below.