In 2014, the Russians annexed the Crimean peninsula. In fact, from this began the great war of the Russian Federation against Ukraine. Could it be stopped without letting the aggression spread? Did Ukraine have enough strength then? Do Ukrainians have invincibility?

The authors of the film found the same sailors of the famous minesweeper Cherkasy, which remained the only one who resisted for several weeks, preventing the Russian invaders from declaring Crimea captured. The last citadel of Ukraine at sea. How was it then? How is it now? Unknown details not told just direct participants in the events, and those who then made decisions.

And the history of invincibility of sailors. These same heroes again came out against the Russian enemy - now in completely different roles to complete the matter.