When some strange atomic explosions threaten the safety of the United States, the government sends Commando Cody (George Wallace) to get to the bottom of things. As it turns out, the threat is coming from the moon, where the evil lunar ruler Retik (Roy Barcroft) is preparing an invasion of Earth. This 12-part science fiction serial from the 1950s (directed by Fred C. Brannon) is a goofy low-budget delight.