Double bill of 1960s action adventures featuring masked Mexican wrestler El Santo. In Santo Vs Evil Brain (1961) Santo bids to take down Dr Campos (Joaquín Cordero) after he abducts and brainwashes scientists to commit his criminal misdeeds. In Santo Vs Infernal Men (1961) Santo joins forces with Lieutenant Zambrano (Enrique J. Zambrano) and El Incognito (Fernando Osés) to take down a gang of drug smugglers.