February 1934. The passage of the Northern Sea Route in one navigation was an ambitious goal and was of great importance for the USSR. Many considered this undertaking a hopeless and risky undertaking. Young and daring polar explorers, led by Otto Schmidt, sincerely believed that they would be able to complete the task on the Chelyuskin steamer. But great ideas turned into a great tragedy - the ship was jammed with ice and sank. Now, in the harsh Arctic conditions, the Chelyuskins have to fight for their lives every minute.