While on a ship to Skagway, Alaska, Duke and Chester find a map to a secret gold mine, which had been 'stolen' by thugs. In Alaska to recover her father's map, Sal Van Hoyden falls in with Ace Larson, who secretly wants to steal the gold mine for himself. Duke, Chester, the thugs, Ace and his henchman chase each other all over the countryside—for the map.
| Art | George Sawley | Set Decoration |
| Writing | Norman Panama | Screenplay |
| Art | Roland Anderson | Art Direction |
| Sound | Leigh Harline | Original Music Composer |
| Writing | Melvin Frank | Screenplay |
| Production | Buddy G. DeSylva | Executive Producer |
| Art | Hans Dreier | Art Direction |
| Directing | Hal Walker | Director |
| Costume & Make-Up | Edith Head | Costume Design |
| Production | Paul Jones | Producer |
| Camera | Lionel Lindon | Director of Photography |
| Sound | Philip Wisdom | Sound Recordist |
| Sound | Hugo Grenzbach | Sound Recordist |
| Costume & Make-Up | Wally Westmore | Makeup Supervisor |
| Editing | Stuart Gilmore | Editor |
| Crew | Gordon Jennings | Special Effects |
