Explosions are raging in one of the ports in the territory occupied by the German fascist invaders. An old and experienced military leader, Admiral Reinhardt, arrives to investigate these emergencies. Together with the head of the Gestapo, SS Standartenfuehrer Hübe, he takes all measures to suppress the activity of the partisans, raids and arrests, but all in vain. Underwater sabotage continues. A detachment of fighters with experience of submarine warfare is sent from Italy to fight the demolitions.
| Directing | Anton Timonishin | Director |
| Art | Mykhailo Yuferov | Production Design |
| Writing | Igor Lukovskiy | Writer |
| Editing | Nadezhda Ratmanskaya | Editor |
| Writing | Eduard Rostovtsev | Novel |
| Costume & Make-Up | Olga Yablonskaya | Costume Design |
| Sound | Nikolai Medvedev | Sound |
| Camera | Vadym Vereshchak | Director of Photography |
| Writing | Bela Yunger | Writer |
| Writing | Eduard Rostovtsev | Writer |
| Sound | Ihor Shamo | Original Music Composer |
| Sound | Stefan Turchak | Conductor |
| Visual Effects | Nikolay Ilyushin | Visual Effects Camera |
| Visual Effects | Viktor Deminskiy | VFX Artist |
