Mort Basset, the powerful owner of the Slash B ranch, thinks he and his men have got away with the killing of the Cadman family when the corrupt Broken Mesa court finds them not guilty. But Basset and his men soon find that this is not to be. Those involved in the murders begin to be hanged or shot dead by an unseen avenger, and they soon find that the man they are after is a deal cleverer than they anticipated. Where will the killings end?