President Grant orders Indian fighter MacKay to negotiate with the Modocs of northern California and southern Oregon. On the way he must escort Nancy Meek to the home of her aunt and uncle. After Modoc renegade Captain Jack engages in ambush and other atrocities, MacKay must fight him one-on-one with guns, knives and fists.
| Directing | Delmer Daves | Director |
| Writing | Delmer Daves | Screenplay |
| Writing | Delmer Daves | Story |
| Camera | J. Peverell Marley | Director of Photography |
| Editing | Clarence Kolster | Editor |
| Art | Leo K. Kuter | Art Direction |
| Sound | Victor Young | Original Music Composer |
| Production | Delmer Daves | Producer |
| Art | William L. Kuehl | Set Decoration |
| Costume & Make-Up | Gordon Bau | Makeup Artist |
| Sound | C.A. Riggs | Sound |
| Camera | Sidney Hickox | Second Unit Director of Photography |
| Costume & Make-Up | Moss Mabry | Wardrobe Designer |
| Sound | Sidney Cutner | Orchestrator |
| Sound | Leo Shuken | Orchestrator |
| Crew | Bob Hoy | Stunt Double |
| Crew | Paul Baxley | Stunt Double |
| Production | Alan Ladd | Producer |
| Costume & Make-Up | Norman Pringle | Makeup Artist |
| Costume & Make-Up | Myrl Stoltz | Hairstylist |
| Crew | Ralph Ayres | Special Effects |
