
The 1930s. Naval maneuvers are underway. On orders from the command, three submarines are to "attack" a battleship. In the heat of the "battle," a fourth periscope appears. Where did the fourth submarine come from? Is it one of ours or an enemy vessel? These questions must be answered immediately by the commander of the destroyer "Otvažny," otherwise...
Cast

Boris Blinov
командир эскадренного миноносца «Отважный» Владимир Крайнев

Vladimir Chestnokov
командир подводной лодки «Спрут» Григорий Крайнев
Mariya Domashyova
Unknown

Konstantin Nassonov
Unknown
Valentin Arkhipenko
Unknown

Vladimir Lukin
Unknown
Sergey Morshikhin
Unknown

Pavel Volkov
Unknown

Lev Shostak
Unknown
Georgiy Kranert
Unknown
Aleksandr Nezhdanov
Unknown

Ivan Dmitriev
Unknown
Vladimir Chobur
Unknown
Mikhail Dubrava
Unknown

Nikolai Kryukov
Unknown

Yuri Fomichyov
Unknown
Nikolai Stepanov
Unknown
Crew

Viktor Eisymont
Director
Georgiy Venetsianov
Writer
G. Blaushtein
Writer

Vladimir Rapoport
Director of Photography
Mikhail Rozenberg
Assistant Director
Ivan Provotorov
Executive Producer

Abram Veksler
Production Design
A. Tikhonov
Camera Operator
N. Butakov
Sound Director
Georgiy Shurkin
VFX Director of Photography

Venedict Pushkov
Original Music Composer
Boris Golts
Original Music Composer
Ivan Znoynov
Assistant Production Design