A team of maritime salvage workers are about to embark on a recovery dive. However the 1883 Krakatoa Volcano eruption provides more pressing problems.
| Directing | Bernard L. Kowalski | Director |
| Production | Philip Yordan | Producer |
| Writing | Cliff Gould | Writer |
| Writing | Bernard Gordon | Writer |
| Editing | Walter Hannemann | Editor |
| Sound | Frank De Vol | Original Music Composer |
| Camera | Manuel Berenguer | Director of Photography |
| Editing | Maurice Rootes | Editor |
| Editing | Warren Low | Editor |
| Art | Luis Pérez Espinosa | Art Direction |
| Art | Eugène Lourié | Production Design |
| Production | William R. Forman | Producer |
| Art | Julio Molina | Art Direction |
| Production | Lester A. Sansom | Associate Producer |
| Costume & Make-Up | Julián Ruiz | Makeup Artist |
| Art | Antonio Mateos | Set Decoration |
| Costume & Make-Up | Laure Lourié | Costume Design |
