Planet out of the Past

Char, Weddy, and Nuell are excited over their discovery on the strange planet Pleisto but also terrified, for the leader of their expedition, Professor Joher, has disappeared. Nuell and Weddy, Joher' children, are concerned for his safety, while Char, his research assistant, feels not only worried but responsible for all of them. He realizes that these prehistoric people may have carried off the professor-and may even have killed him. The three set out to find the professor, and their searc...