Professor Bruno Volpi spots some strange paintings on a cliff. He sends for Professor Zovek to help him discover its meaning. Zovek uses his powers to figure the writings are a warning that a cosmic tragedy is going to happen. Their fears prove to be true when a fire ball falls from the skies causing the ressurrection of the dead as zombies, craving for human flesh.
El Santo, the masked Mexican wrestler, investigates a series of kidnappings. He discovers that the mysterious Doctor Caroll is using the victims as part of his experiments to develop an army of monsters.
Santo and Blue Demon take on a 300-year-old witch with a nasty attitude. She raises a legion of zombies and sends them to fight Santo in his home and in the rings.
When Santo accompanies a troupe of archaeologists in the search for Aztec artifacts, they find the Mummy of an Aztec who leaves a warning to those who tamper with his resting place.
A mad scientist terrorizes a city by kidnapping young women with his ape-man Gomar and then using them as subjects in sadistic brain transplant experiments.
The innkeeper Barnabáš and the teacher Isidor Slovíčko succumb to the lure of old Moreles, to whom the young Taussig sends enthusiastic letters from America.
Two rival street gangs from Kowloon go to war over turf and bar girls so as to dominate the area and maximize their takings; however things go from bad to worse as the girls start to get involved in the bloody feud.
