In 1769, a Spanish expedition to California seeks to conquer the land and discover its famed gold treasures while missionaries aim to gain new converts and establish a network of Catholic missions.
| Directing | Robert D. Webb | Director |
| Art | Lyle R. Wheeler | Art Direction |
| Costume & Make-Up | Ben Nye | Makeup Artist |
| Writing | John C. Higgins | Screenplay |
| Writing | Isabelle Gibson Ziegler | Novel |
| Crew | Joseph Petracca | Additional Dialogue |
| Production | Robert D. Webb | Producer |
| Costume & Make-Up | Adele Balkan | Costume Design |
| Camera | Lucien Ballard | Director of Photography |
| Art | Walter M. Scott | Set Decoration |
| Writing | Richard L. Breen | Screenplay |
| Editing | Hugh S. Fowler | Editor |
| Production | Darryl F. Zanuck | Executive Producer |
| Art | Jack Martin Smith | Art Direction |
| Production | Barbara McLean | Producer |
| Sound | Hugo Friedhofer | Original Music Composer |
| Crew | Ray Deter | Special Effects |
| Sound | Lionel Newman | Conductor |
| Directing | Eli Dunn | Assistant Director |
| Crew | Ray Kellogg | Special Effects |
