El Santo returns to help two friends who have crossed the border into Texas in hopes of making enough money to pay for little Florecita's operation to restore her eyesight. But things don't go their way when they go to work on Mr. Richard's ranch. They are captured by the evil Dr. Sombra who is turning Mexican immigrants into unwilling organ donors. Looks like El Santo will have his hands full. Stars Santo, Gerardo Reyes, Carmen del Valle, Carlos Su rez, Jean Safont, Federico Falc¢n , Miguel Angel Fuentes, Sarita G¢mez , and wrestlers: Cien Caras, Bobby Lee, Ringo Mendoza, Karloff Lagarde, Mocho Kotta, Jungla, Sangre Chicana, Carnicero Aguilar.