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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| Sound | Mort Glickman | Music |
| Crew | Bud Wolfe | Stunts |
| Editing | Harold Minter | Editor |
| Camera | Bud Thackery | Director of Photography |
| Crew | Dale Van Sickel | Stunts |
| Art | Russell Kimball | Art Direction |
| Crew | Eddie Parker | Stunts |
| Crew | Joe Yrigoyen | Stunts |
| Production | Ronald Davidson | Associate Producer |
| Editing | Cliff Bell Sr. | Editor |
| Crew | Carey Loftin | Stunts |
| Crew | Tom Steele | Stunts |
| Directing | Lee Lukather | Assistant Director |
| Costume & Make-Up | Bob Mark | Makeup Supervisor |
| Art | Fred A. Ritter | Art Direction |
| Crew | Helen Thurston | Stunt Double |
| Crew | Ken Terrell | Stunts |
| Crew | Fred Graham | Stunts |
| Crew | Ted Mapes | Stunts |
| Crew | John Daheim | Stunts |
| Writing | Jesse Duffy | Screenplay |
| Writing | Albert DeMond | Screenplay |
| Writing | Basil Dickey | Screenplay |
| Writing | Lynn Perkins | Screenplay |
| Directing | Fred C. Brannon | Director |
| Directing | Spencer Gordon Bennet | Director |
