Calpuina is a night-watchman in a wharehouse, a perfect job for him. When some thieves break in and steal some crates, El Santo is after them because they are using the wharehouse for diamond smuggling. Capulina hinders their capture. Then he decides that he will put on a wrestler's mask and help El Santo to caputre the crooks.
Includes: Santo vs. Evil Brain, Santo vs. Infernal Men, Santo vs. the Zombies, Santo vs. the King of Crime, Santo in the Hotel of Death, Santo vs. the Diabolical Brain, Santo vs. the Vampire Women, Santo in the Wax Museum, Santo vs. the Strangler, Santo vs. the Ghost of the Strangler, The Witches Attack, The Diabolical Axe, The Grave Robbers, Baron Brakola, Santo vs. the Martian Invasion, Santo the Silver Mask vs. The Ring Villains, Operation 67, The Treasure of Moctezuma, Santo in the Treasure of Dracula, Santo vs. Capulina, Santo vs. Blue Demon in Atlantis, Santo and Blue Demon Against the Monsters, The World of the Dead, Santo vs. the Head Hunters, Santo Faces Death, Santo vs. The Riders of Terror, The Vengeance of the Vampire Women, Santo vs. the Vice Mafia, The Mummies of Guanajuato, Santo in the Mystery of the Black Pearl, Santo vs. Frankenstein's Daughter, Suicide Mission, Santo vs. the Killers from Other Worlds, Santo and the Golden Eagle, Santo and Blue Demon vs. Dracula and the Wolf Man, Santo vs. the Kidnappers, Santo vs. Black Magic Woman, The Beasts of Terror, Santo vs. the She-Wolves, Anonymous Death Threat, Santo and Blue Demon vs. Dr. Frankenstein, Santo vs. Doctor Death, The Vengeance of the Crying Woman, Night of San Juan: Santo in Black Gold, Mystery in the Bermuda Triangle, Santo and the Border of Terror, Santo vs. the TV Killer, The Fist of Death, The Fury of the Karate Experts
