The alarm sound of a siren broke the silence. There is an accident at the Gradovskaya mine! There are people down there! The miners who did not manage to get up were in danger. The mountain rescue team, led by Alexander Trigorin, went to the scene...
Antarctic station "Vostok" threatens conservation due to lack of fuel. Volunteer squad is called to take fuel, but will soon begin "Polar autumn" in Antarctica. No one has walked this way, when the temperature drops below 71 degrees Celsius and freezes fuels.
A chance meeting between Ivan Balashov, an old Muscovite, and an 18-year-old Georgian boy who has come from a village in Adjara to enter university becomes the beginning of a great friendship.