In the year 2020, cosmonaut Marcia (Faith Domergue) orbits the planet Venus while two astronauts and a robot journey on the surface. Professor Hartman (Basil Rathbone) is also on hand to observe the exploration from a distance. The explorers are attacked by prehistoric beasts, and then nearly lose their robot (and their lives!) in a volcanic eruption that engulfs the planet. They conclude that the Venusians were really human beings who destroyed their civilization with nuclear warfare.Voyage To The Prehistoric Planet paired landmark special effectsand action sequences acquired from the Soviet science fiction film Planet Burg with dramatic performances from Basil Rathbone and Faith Domergue. Director Curtis Harrington is credited as John Sebastian. Production manager Gary Kurtz went on to produce Star Wars, The Empire Strikes BAck and the Dark Crystal.