A model agency in Rio de Janeiro is actually a front for a white-slavery ring that kidnaps European women and sells them on the South American sex market.

After The Deerslayer, a white man reared by the Mohicans, and his blood brother Chingachgook, a Mohican chief, save trader Harry Marsh from the hostile Huron Indians, they learn that the Hurons will attack Old Tom Hutter and his two daughters, Hetty and Judith, who live on a floating raft fort on the river.

Astronauts blast off to explore the moon on Rocketship X-M or "Rocketship eXploration Moon". A spacecraft malfunction and some fuel miscalculations cause them to end up landing on Mars. On Mars, evidence of a once powerful civilization is found. The scientists determine that an atomic war destroyed most of the Martians. Those that survived reverted to a caveman like existence.