The year is 2014. Mishko and Lev are fellow villagers serving on the minesweeper “Cherkasy”, a ship of the Ukrainian Navy stationed in the port of the Crimean Lake Donuzlav that is connected to the Black Sea. When the invasion of Crimea by the infamous “little green men” begins and President Yanukovych flees the country, the “Cherkasy” and other ships of the Ukrainian fleet are blocked on the lake. Successive Ukrainian ships surrender to the Russians. Only the crew of the "Cherkasy" decide to resist. Meanwhile, the Russians prepare to attack the minesweeper. The crew have to decide whether to defend themselves at all cost and to the very end. Based on true events, this is a story about the last warship in Crimea to sail under the Ukrainian flag.