Rancher's daughter Rebecca Donnell is marked for death after recognizing one of the men robbing the stage she is travelling on. Her father knows only that she has vanished off the face of the earth, so he hires Shane Preston and Jonah Jones to find her - or her body. The two gunfighters ride into the wilderness and discover the remains of the missing stagecoach. Nearby are three shallow graves. Their quest should have ended there. But the lean gunfighter and his crusty old companion know they won't rest until they settle with the killers themselves, the Long Knife outfit...