In the African jungles, local tribes are terrorized by costumed skeleton people who kidnap the men of a local village. However, Bono. the local chieftain is able to escape. Jungle Jim rescues a photographer, Anne Lawrence, when her boat overturns She explains that she is searching for football player Bob Miller (played by real-life footballer Bob Waterfield) and enlists Jim to help with her search.
Bono, looking for his tribesmen, agrees to join the search as both trails seem to lead to the same place.
They subsequently stumble upon a crazed doctor who has been kidnapping villagers to work in a radioactive mine, where he has discovered a way of making diamonds out of mineral rocks, The group manages to stop the doctor's plan by exploding the mine. Bob and Anne agree to stay in the village to continue with improvements.
