A vacationing family finds a monster in a swamp. The locals drive it back into the swamp with torches, but it was only a shipwrecked alien trying to get help.; A scientist plots to use a captured mermaid from Atlantis to gain world renown, but she has a plan of her own.; A man plots to get the African natives to get rid of his unwanted business partner for him by framing him for stealing their stone god's sacred ruby. His plan works, but he had not counted on the stone god possessing a sense of justice.