A couple of university students and recent graduates decide to go on a skiing trip. The local government inserts a KGB agent into the group because they are suspicious the group wants to emigrate to Alaska. Their trip is uneventful until one day one of them spots a Menk in the distance while doing their business in the forest. They quickly take a photo but are unsure what they saw. The next day, they get caught in a blizzard and decide to set up the tent on a windswept slope with no firewood nearby. While chewing on frozen ham for dinner in the tent, the infrasound generated by the wind over the mountain induces Arctic hysteria in one of them. They grab a knife and slash the tent open, and run out into the storm. The others are worried about their friend and run after them the way they were, without wasting time putting on coats or shoes, leaving their dinner behind. When they catch up with her and try to comfort her, suddenly they hear explosions from the sky, and the fireball of a low-yield nuclear test appears above the peak of Holat Syakl. Semyon snaps a few photos of this phenomenon, the others start running away as fast as they can, leaving 8 set of raised footprints in the snow. They stumble upon a Mansi shaman and his hunting pals in a delirious trance around a campfire under an old cedar tree. They join the dance, but are interrupted an hour later by armed men in police uniform. These men try to subdue and arrest everyone, as animistic rituals are illegal in the Soviet Union, furthermore they suspect the group have been hunting brown bears as they spot the fresh hide of a cub in the snow. Bears are protected as an endangered species in Russia. A chaotic fight ensues, Tibo is hit on the head with the butt of a shotgun and falls, rolling down into a ravine. Rustem tries to produce the letter he happens to have in his trouser's pockets, which explains they are on an authorized hiking trip, however, the policemen assume he is trying to draw a knife and hit him in the head too. He crawls away injured, and succumbs to the cold. At this point, everyone is startled by another explosion, this time from the forest. The force of the blast throws Sasha into the air and breaks several branches off the cedar which fall on Lyuda and Semyon, breaking their ribs. The Mansi take advantage of the confusion and speed away on their husky-drawn sled. The policemen quickly discuss the situation and decide to investigate the source of the blast. The two Yuris are injured and can barely stand, as they stepped on the fire during the fight. Igor and Zina try to keep the fire going but soon realize that Rustem is missing. They set out to find him in the moonless, frigid night.
Two weeks later, a hungry, pregnant wolverine happens upon the tent while looking for food. While munching on some ham, it is startled by the shouts of escaped zeks in the distance. In its confusion, it steps on and breaks a ski pole in the tent, and sprays the blankets on the floor. Then, as the zeks pass, it slowly follows them up the slope towards the freedom of the independent republic of Perm, hoping to steal some food from their backpacks when they stop to rest later on...
I hope this explains everything.