The crew of Ukrainian NAVY minesweeper U311 "Cherkasy" is resisting seizure of the vessel by Russian army in Crimea in 2014.
Mishka and Lev are guys from a Ukrainian village. For various reasons, they end up on the Ukrainian naval warship Cherkassy, stationed in the port of the Crimean lake Donuzlav during the events on the Maidan in 2014. Together with other ships of the Ukrainian fleet, "Cherkassy" is blocked in Lake Donuzlav - the way to the sea is blocked by flooded ships. Ukrainian ships surrender one after another, and only the crew of "Cherkassy" resists and continues to fight.