Santo vs. The Riders of Terror
Santo contra los jinetes del terror (original)
After a group of violent lepers escapes from a sanitarium, - robbing several farms, residents of the town demand the the sheriff - take action. Meanwhile, a local criminal joins forces with the lepers - to commit even more robberies. As the disfigured madmen keep the - entire town indoors with its reign of terror, the sheriff has no - choice but to call on the only man who can help--legendary wrestling - superhero, Santo!
Starring Santo, Armando Silvestre, Julio Aldama, Mary Montiel, Gregorio Casal, Ivonne Govea, Carlos Agostí, Carlos Suárez, Nathanael León 'Frankenstein', Gloria Chávez
Watch "Santo vs. The Riders of Terror" from streaming services Tubi TV, Amazon released in 1970. It's a horror and action & adventure movie, and has a rating of 6.1 out of 10 from Imdb which is usually fine for this kind of movie.