Astronaut Taylor crash lands on a distant planet ruled by apes who use a primitive race of humans for experimentation and sport. Soon Taylor finds himself among the hunted, his life in the hands of a benevolent chimpanzee scientist.
The sole survivor of an interplanetary rescue mission lands on the planet of the apes, and uncovers a horrible secret beneath the surface.
A veterinarian who can communicate with animals travels abroad to search for a giant sea snail.
