A Navy lieutenant is borrowed by the British to supervise torpedo experiments after one of their scientists is killed.
| Directing | Roy Boulting | Director |
| Directing | John Boulting | Director |
| Camera | Gilbert Taylor | Director of Photography |
| Writing | Roy Boulting | Screenplay |
| Production | John Boulting | Producer |
| Editing | Max Benedict | Editor |
| Writing | Frank Harvey | Screenplay |
| Art | Reg Bream | Draughtsman |
| Art | Elliot Scott | Assistant Art Director |
| Sound | Miklós Rózsa | Original Music Composer |
