Misha and Lev - guys from the Ukrainian village. They for various reasons appear on the warship of Naval Forces of Ukraine "Cherkasy", the Crimean lake Donuzlav deployed in port, during the events on the Maidan of 2014. When the crew of the trawler "Cherkasy" is trained, the president Yanukovych flees Ukraine, and the Crimea is taken by "little green men". Occupation of the Crimean peninsula begins. The ship comes back to base, but the port is already lost. Cherkasy, together with other ships of the Ukrainian fleet, it is blocked in the lake Donuzlav - the way to the sea is blocked by the flooded courts. The Ukrainian ships seem one after another, only the crew of "Cherkasy" resists and continues brave, though hopeless, fight against the enemy.