Spies discover that the Red Chinese have built a "doomsday machine" capable of destroying the surface of the Earth, and that they plan to use it within a matter of days. Meanwhile, Project Astra, a manned U.S. space mission to Venus, is in its final hours before launch when it is taken over by the military and nearly half of its all-male crew is replaced by women. The reason for this becomes apparent when, shortly after Astra leaves orbit, the Earth is completely destroyed in a global cataclysm! Is the human race doomed? What dangers and wonders await the crew of the Astra on their journey to Venus? Written by
Did You Know?
The climax was originally meant to take place on the surface of Venus but the production simply didn't have enough money for that. Instead, the ending was hastily rewritten to be set inside a spaceship. See more
While the characters prepare to fire the rockets, exterior shots show that the rockets are already firing. See more
Dr. Marion Turner
Katie, this isn't a hayride. We're here for a serious purpose!
Lt. Katie Carlson
What could be more serious than a hayride?