In order to make good with his former employers, a submarine captain takes a job with a shadowy backer to search the depths of the Black Sea for a submarine rumored to be loaded with gold.

The story is based on the real events of 1985. The team of a Russian polar icebreaker “Mikhail Gromov” discovered a giant iceberg. The ship came into collision while attempting to take cover from the weather and is forced to drift with ice along the Amundsen Sea coast. The crew of “Gromov” spent 133 days of polar night trying to find a way out of their icy trap. They have no room for mistakes; one wrong move and the vessel is crushed by ice.

Siberia. Late autumn. In taiga, in the deserted village there lives an old man Ivan & his seven-year-old grandson Leshia. A pack of feral dogs devours everything alive in the neighborhood. One of these dogs is Leshia's best friend. Sometimes their relative uncle Yuri brings food to them. Once on his way back from Ivan's village uncle Yuri is attacked by dogs & perishes. Ivan & Leshia stay without supply. Once Leshia witnesses Ivan shooting at 'his' dog & runs away. The old Man finds him in a dry well, but he fails to get him out on his own. Ivan sets out through taiga in search of help. Now the dogs are hunting him... And the boy is waiting for his father...

The film's two main protagonists are Russia's best saber fencers. One of them has long been in the limelight, the other only recently made it into the national team and has been winning almost every tournament since. The two athletes begin to fight for supremacy both on and off the arena.