Beautiful Silvia and Sandra disappear mysteriously at the Bermuda Triangle. Santo, Blue Demon and Mil Mascaras, a team of super-heroes, go into action to try to find them. Soon they find out that evil Scientist Dr. Gro has developed a device to make people and objects to disappear blaming the famous vanishings of ships, airplanes and human beings on Mother Nature. Cast: Santo el Enmascarado de Plata, Blue Demon, Mil Mascaras, Silvia Manrquez and, Sandra Duarte

Wrestler vs mad-scientist with werewolf serum.

Innocent women are being kidnapped and used as guinea pigs for a brain transplant experiment. The diabolical Dr. Frankenstein continues his quest to perfect his brain transplant operation to bring back his deceased wife at any cost - even if it means playing with the lives of others. El Santo and Blue Demon are called in to help when their friend Alicia becomes Dr. Frankenstein's next target. It'll take both heroes to go up against the dastardly doctor and go mano a mano with his super strong zombie Golem.

Satan, a wrestler who sold his soul to the Lord of Darkness for fame but was thwarted by Santo's ancestor, who is now rising after a hundred years with his army of mummies to take revenge.

A Nazi scientist using the lost city of Atlantis as his home base threatens to destroy civilization with a nuclear bomb. The Nazi scientist wants the third Reich to rule again and if his demands are not meet he will follow through on his threat of nuclear annihilation. With very little time to spare Santo is enlisted to find the nuclear bomb, disarm it and end the Nazi scientist’s diabolical plan

The Blue Demon faces a murderous satanic hypnotist.

Bruno Halder a sinister scientist seeking revenge against his brother and niece is resurrected by Waldo his faithful sidekick. Besides his minions of zombies Halder enlists the help of Wolfman, Franquestain, a Vampire, a Mummy and a Cyclops. Once again the survival of mankind is put in the hands of Santo

Arácnea's residents have been desperately searching for a source of food to save the life of their queen (a big spider). Earth is chosen, since human brains are apparently like health food for alien spiders.