When the unscrupulous Carlos Manning discovers that an old Spanish land grant recently unearthed will leave a huge section of California real estate to the heirs of Don Quantero, he employs Mel Donovan and his killer henchmen to murder them all. That will leave Manning as the sole heir to millions. However, Delores Quantero tumbles to this plot and enlists the aide of two-fisted reporter, Cliff Roberts to save all her relatives
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| Crew | Helen Thurston | Stunt Double |
| Crew | John Daheim | Stunts |
| Crew | Fred Graham | Stunts |
| Crew | Carey Loftin | Stunts |
| Crew | Ted Mapes | Stunts |
| Crew | Eddie Parker | Stunts |
| Crew | Tom Steele | Stunts |
| Crew | Ken Terrell | Stunts |
| Crew | Dale Van Sickel | Stunts |
| Crew | Joe Yrigoyen | Stunts |
| Crew | Bud Wolfe | Stunts |
| Sound | Mort Glickman | Music |
| Production | Ronald Davidson | Associate Producer |
| Editing | Cliff Bell Sr. | Editor |
| Editing | Harold Minter | Editor |
| Camera | Bud Thackery | Director of Photography |
| Art | Fred A. Ritter | Art Direction |
| Art | Russell Kimball | Art Direction |
| Costume & Make-Up | Bob Mark | Makeup Supervisor |
| Directing | Lee Lukather | Assistant Director |
| Directing | Spencer Gordon Bennet | Director |
| Writing | Albert DeMond | Screenplay |
| Writing | Basil Dickey | Screenplay |
| Writing | Jesse Duffy | Screenplay |
| Writing | Lynn Perkins | Screenplay |
| Directing | Fred C. Brannon | Director |
