Tijdens de Tweede Wereldoorlog wordt Kapitein Ericson aangesteld als bevelhebber van een Brits oologsschip dat andere schepen beschermt bij hun reis over de Atlantische Oceaan. Ericson is getraumatiseerd door de ervaring op zijn vorige schip waarbij hij veel manschappen verloor.
| Writing | Nicholas Monsarrat | Novel |
| Writing | Eric Ambler | Screenplay |
| Directing | Charles Frend | Director |
| Costume & Make-Up | Barbara Barnard | Hairstylist |
| Art | Jim Morahan | Art Direction |
| Sound | Alan Rawsthorne | Music |
| Editing | Peter Tanner | Editor |
| Camera | Chic Waterson | Camera Operator |
| Costume & Make-Up | Sidney Turner | Makeup Artist |
| Directing | Norman Priggen | Assistant Director |
| Production | Leslie Norman | Producer |
| Camera | Gordon Dines | Director of Photography |
| Crew | Sydney Pearson | Special Effects |
| Production | L. C. Rudkin | Unit Production Manager |
| Sound | Ernest Irving | Conductor |
| Sound | Stephen Dalby | Sound Supervisor |
| Crew | R. S. Abram | Technical Advisor |
| Visual Effects | Geoffrey Dickinson | Visual Effects |
| Crew | Jo Jago | Second Unit Cinematographer |
| Sound | Leo Wilkins | Sound Recordist |
| Crew | Paul Beeson | Second Unit Cinematographer |
| Camera | John R.F. Stewart | Additional Photography |
| Production | Hal Mason | Production Supervisor |
| Costume & Make-Up | Anthony Mendleson | Wardrobe Designer |
| Directing | Jean Graham | Continuity |
| Crew | J. E. Broome | Technical Advisor |
