Four friends travel to the Altai for a rafting trip on a mountain river. Cut off from civilization and face-to-face with nature at its wildest, the heroes are not able to relax but instead are forced to fight for survival. … Natalya Skomorokhova, Roman Kurtsyn, Arina Postnikova, Grigory Chaban, Aleksandr Golubkov, Oleg Fomin, Evgeniy Atarik Added on Amazon Prime 2020-12-30.