An old soldier helps a young boy find his mother, who's been kidnapped to the magical underwater kingdom in a remote Russian lake.
| Writing | Yevgeni Shvarts | Writer |
| Directing | Aleksandr Rou | Director |
| Art | Anatoli Dikan | Set Decoration |
| Art | Yevgeni Galei | Art Direction |
| Crew | L. Akimov | Special Effects |
| Crew | Arseni Klopotovsky | Special Effects |
| Sound | Andrey Volkonsky | Original Music Composer |
| Camera | Dmitri Surensky | Director of Photography |
| Crew | V. Nikitchenko | Special Effects |
| Sound | Arnold Roitman | Music Director |
