 The evil Dr. Krupp, once again trying to get possession of the Aztec princess Xochitl s jewels, hypnotizes her current reincarnation, Flor, to get her to reveal the jewels  location - Xochitl s tomb. Confusion reigns as Krupp and his thugs are opposed by Flor s lover, Dr. Almada, his assistant, and wrestling superhero, El Angel. Krupp finally meets his match, however, when he comes up against Popoca, the warrior mummy who guards Xochitl s tomb.