Despite the name similarity, the film is not a part of Sergio Leone's Dollars trilogy. Evidently the film was inspired by this. On release in the United States, several of the cast members and production team had their names changed for the English audience.
The bandit Sancho kills the wife of Johnny Ashley, and because he cannot have a child of his own he abducts Johnny's son Jerry to raise him as his own. Jerry grows up to become an evil man who kills his fiancée Sybil when she threatens to disclose his plans for a robbery. Johnny keeps searching to find his son and avenge his wife. He crosses paths with Jerry and in turn they save the other man's life. Eventually Johnny confronts and kills Sancho. He learns about Jerry from Sancho's wife. When the son comes to avenge his ”father,” Johnny tries to disarm him, but Jerry is accidentally killed without learning the truth.
