An interstellar expedition is sent to study a strange planet. Despite the fact that creatures from various Earth time periods inhabit the world, the natives possess metal swords, even though they should have no knowledge of such weaponry.
| Directing | Yuriy Moroz | Director |
| Writing | Kir Bulychyov | Novel |
| Writing | Kir Bulychyov | Screenplay |
| Camera | Alexander Filatov | Director of Photography |
| Camera | Aleksandr Krupnikov | Director of Photography |
| Sound | Maksim Dunaevskiy | Music |
| Art | Vladimir Yarin | Production Design |
| Costume & Make-Up | Nadezhda Fadeyeva | Costume Design |
| Editing | Valentina Mironova | Editor |