Jason Connor, a wandering preacher, stumbles across a wagon and its dead occupants. He decides to deliver the only survivor, a young boy to his aunt and uncle. Before he can do so he has to shoot his way through the gang who committed the murders. When he comes upon the scene of a double lynching the discovery puts Connor in a collision course with the executioners. The killers keep coming and the gun barrels grow hot as assassins seek to claim the bounty on his head. The Bible spouting gunman deals out Gun Barrel Justice as he sends killer after killer to hell.