The evil scientist Dr. Caronte plots to revive the brains of three dead scientists and use them to obtain the formula for the super-powerful neutron bomb. The resulting creation needs blood lots of blood, sending Caronte's midget assistant Nick and his legion of mutant monsters out to get fresh victims. However, the masked atom-superman Neutron vows to put a stop to Caronte's deeds.

A tough young man, who helps to kick poor people out of their houses, falls in love with a girl. She lives with her father in the building about to be demolished.

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.)

A scientist experimenting with past lives finds a reincarnated Aztec who can lead him to lost treasure—and to a creature that should remain lost. (Composed of footage from two unrelated Mexican horror films, LA CASA DEL TERROR and LA MOMIA AZTECA, plus new American-made footage.)