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S1E1
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Julia's son dies during a hike in the mountains. However, after the funeral, she receives a mysterious video in the mail in which she sees her son alive. Everything indicates that he is being held somewhere on Sakhalin, in the area of the Severnaya-2 drilling station. Julia goes to Sakhalin in search of her son. Her ex-husband Andrey flies there after her. Parents will have to search for their son for a long time in a dying snow-covered village, in a harsh region where strangers are not welcome.