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.
Production companies：
Filmové studio Barrandov
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Gorky Film Studios
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Gosfilmfond Russia
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Ladya
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Československá televize
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Overview：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.
