Cruze arrives in town and when he stands up to the three Moran brothers, he gets appointed Marshal. First the brothers kill a rancher while framing another man. But when the jailer is murdered, Cruze gets evidence the Morans did it. He tries to raise a posse to chase them down but the townsmen refuse to go. So he rides off by himself to face the three of them.
Unfortunately the movie The Lone Gun is not yet available on Disney Plus.
| Directing | Ray Nazarro | Director |
| Camera | Lester White | Director of Photography |
| Writing | Richard Schayer | Screenplay |
| Writing | Don Martin | Screenplay |
| Writing | L.L. Foreman | Story |
| Costume & Make-Up | Chuck Keehne | Costume Design |
| Production | Edward Small | Producer |
| Sound | Charles Cooper | Sound |
| Crew | David Koehler | Special Effects |
| Editing | Buddy Small | Editor |
| Art | Alfred Kegerris | Set Decoration |
| Sound | Irving Gertz | Original Music Composer |
| Art | Frank Paul Sylos | Art Direction |
| Directing | Ralph E. Black | Assistant Director |
