At some point, somewhere in the relentless events of the Second World War: A submarine returns from a long, successful patrol. Shortly before their native coast, however, they are bombarded by enemy aircraft. The submarine sinks and for the men begins a fight for survival at 110 meters depth.
| Writing | Carlo Romano | Screenplay |
| Writing | Silvio Amadio | Story |
| Writing | Luciano Vincenzoni | Story |
| Directing | Silvio Amadio | Director |
| Writing | Gino De Santis | Screenplay |
| Writing | Silvio Amadio | Screenplay |
| Production | Roberto Palaggi | Unit Manager |
| Camera | Franco Villa | Camera Operator |
| Sound | Luigi Puri | Sound |
| Sound | Oscar Di Santo | Sound |
| Costume & Make-Up | Manrico Spagnoli | Makeup Artist |
| Editing | Luciano Cavalieri | Editor |
| Directing | Ottavio Oppo | First Assistant Director |
| Directing | Marion Mertes | Script Supervisor |
| Art | Franco Lolli | Production Design |
| Sound | Bruno Canfora | Original Music Composer |
| Camera | Luciano Trasatti | Director of Photography |
| Production | Italo Zingarelli | Production Manager |