Dr. Frankenstein and her assistant, Dr. Yanco, are going to bring one of their experiments to life in Santo Vs. Frankenstein's Daughter. She intends to use a monster named Ursus to do her evil bidding. Using a youth serum to retain their vitality, the doctors set their sights upon none other than El Santo. They need his super human blood to regenerate a stronger youth serum. They kidnap Santo's goddaughter, Norma and lure him into Dr. Frankenstein's lab where he is captured and enslaved. Will Santo make it out alive?
as Santo
as Dr. Freda Frankenstein
as Norma
as Dr. Yanco
as Elsa
as Tuerto
as Ursus / Truxon
as Don Elias
as Carcelero
as Luchador
as Luchador
as Narrator
