A scientist seeking loot of the Nile regresses a woman to her past incarnation, a princess in ancient Egypt. (Edited from the Mexican horror film LA MOMIA AZTECA, and follows its general plot but with 36 minutes of new, American-made footage and English narration in lieu of dubbed dialogue for the original footage.)

Capulina is a night-watchman in a warehouse, a perfect job for him. When some thieves break in and steal some crates, El Santo is after them because they are using the warehouse for diamond smuggling. Capulina hinders their capture. He then decides that he will put on a wrestler's mask and help El Santo to caputre the crooks.