Capricorn

Professional killer Holland is forced out of retirement to break a Central American government's political torture ring when one of his friends, a Latin American journalist, is killed. The murderer, Doctor Clement Molloch, is the master sadist behind the political torture of innocent victims. Posing as a journalist, Holland lures Molloch out of his fortress-like headquarters by using his murdered friend's wife and daughter as bait. When Holland kidnaps Molloch's sister, the doctor is led on a wild chase that takes him to an abandoned opal mine where he finally comes face to face with Holland.

This Western is set in the Mexican valley of Sonora not that far south of the state of Arizona. It's just after the American Civil War, and a former Confederate officer, Mike Summers has taken refuge in a small town in the valley. He has married and is hoping to live in peace the rest of his life. Instead, he and his wife and the rest of the town are suffering the depredations of a brutal gunman, Danny Pose, and his gang of outlaws. Summers holds off picking up a gun because of his personal vow of non-violence. But the situation deteriorates and a new ally comes into the picture, Steve Fallon, a wandering gunslinger who may not be able to handle the bad guys alone.