Marshal Johnnie Taggart, posing as an outlaw named "Ace" Braddock, comes to Bannack, Montana to restore law and order. But he is recognized by Kitty, co-owner with Clay Curtwright of the infamous Bull Whip saloon. But "bad-girl" Kitty keeps her mouth shut. When Johnnie's pal Andy reports a stage holdup, Curtwright's henchman, Ben Borden, talks the sheriff and Judge Holden into suspecting Johnnie. Johnnie reveals himself to Judge Holden as a government marshal, and the judge voices his opinion that Curtwright is the leader of the road agents, but voices it in the presence of his granddaughter, Louise Holden.
| Directing | Ray Taylor | Director |
| Writing | Roy Chanslor | Screenplay |
| Production | Howard Welsch | Producer |
| Sound | Frank Skinner | Original Music Composer |
| Camera | Virgil Miller | Director of Photography |
| Editing | Paul Landres | Editor |
| Art | Jack Otterson | Art Direction |
| Art | Frank A. Richards | Art Direction |
| Art | Russell A. Gausman | Set Decoration |
| Art | Donald E. Webb | Set Decoration |
| Costume & Make-Up | Rosemary Odell | Costume Design |
| Directing | William Tummel | Assistant Director |
