Doc Cargraves (Anderson) and General Thayer (Powers) have reason to be depressed. They've just watched four years of work--what was supposed to be Earth's first man-made satellite--crash and burn shortly after launch. But instead of discouraging them, the suspicious-seeming setback drives them to set their sights higher: the moon.
The peacetime government won't back such an outlandish project, however, so Thayer approaches aeronautics tycoon Jim Barnes (Archer). Barnes is skeptical at first, but Thayer wins him over with the same arguments Barnes later uses on his fellow industrialists. Not only is the moon easier to reach than one might think, Barnes tells them, it's also a national imperative. There's no way to stop a missile attack from the moon, he warns. Whoever controls the moon controls Earth.
Industry responds with gusto, privately funding a major rocket program led by Barnes, Cargraves, and Thayer. Before long, a sleek, silver rocket--humanity's ultimate manufacturing achievement--towers over the New Mexican plateau. Thwarted at the last moment by propaganda-incited public opposition and red tape, Barnes decides they must launch immediately or not at all. There's one last hitch: their radio man is laid up, so they must take a contractor, Sweeney (Wesson), who's certain the whole scheme is "all wet."
Nonetheless, and to Sweeney's amazement, they make it into space. En route the crew even performs a spacewalk to fix an antenna, though they nearly lose Cargraves in the process. But a miscalculation compels them to use too much fuel for their landing. Now, having finally reached their goal (and having claimed the moon for America), they face the dismal prospect of not being able to get everyone back to Earth. There seems to be only one solution--someone has to stay behind.
"The thing won't woik!"




