Commando Cody, 'Sky Marshal of the Universe', works with American scientists Joan Gilbert and Ted Richards in the development of a flying suit and a rocket to the Moon.
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.
In Japan, scientifically advanced invaders from the war-destroyed planet Mysteroid cause an entire village to vanish, then send a giant robot out to storm the city by night, after which they request a small patch of land on Earth and the right to marry earthling women, claiming to be pacifists.
In front of television crews and thousands of spectators, Spaceship-1—commanded by Commodore Hardt, inventor of the powerful rocket fuel "Neotan-X"—blasts off on the first flight to the Moon.
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.
An Air Force captain inadvertently volunteers to make the first manned flight around the moon. He immediately falls under the watchful protection of various security agencies, but despite all their precautions, a young woman who may be an enemy spy succeeds in making contact with the captain.
A young woman takes up a job as a cook in a wealthy couple's residence. Her employer, an elderly man is infatuated with her, much to the dismay of his arrogant wife.
A samurai answers a village's request for protection after he falls on hard times. The town needs protection from bandits, so the samurai gathers six others to help him teach the people how to defend themselves, and the villagers provide the soldiers with food.