A gold mine in Arizona, that was formerly losing a lot of money, suddenly turns into a veritable money-making machine. However, the owner, instead of being happy about his now profitable business, insists to Charlie that something is fishy and that someone is out to murder him. Charlie and his "crew" travel to the mine, pretending to be tourists staying at a nearby dude ranch so as not to arouse suspicion, and discover that the owner may well be right--it looks like the mine is being used as a cover for criminal activities, and that someone is indeed out to murder him.
| Writing | Scott Darling | Writer |
| Directing | William Beaudine | Director |
| Writing | Earl Derr Biggers | Characters |
| Costume & Make-Up | Lela Chambers | Hairstylist |
| Production | James S. Burkett | Producer |
| Camera | William A. Sickner | Director of Photography |
| Editing | Ace Herman | Editor |
| Art | Dave Milton | Art Direction |
| Art | Raymond Boltz Jr. | Set Decoration |
| Costume & Make-Up | Web Overlander | Makeup Artist |
| Production | Allen K. Wood | Production Manager |
| Sound | Franklin Hansen | Sound |
| Sound | John K. Kean | Sound |
| Camera | John J. Martin | Camera Operator |
| Directing | Jules V. Levy | Script Supervisor |
| Editing | Otho Lovering | Supervising Editor |
| Camera | Grant Tucker | Grip |
