Spring, 1944. The Great Patriotic war. The German fascists are still in Sevastopol. A fierce combat is taking place there. At the same time in Yalta, which has already been freed, life goes on peacefully. People believe that the war has left them, that it is far away and no longer dangerous... But the torpedo motor-boat squadron stationed in Yalta is still having a hard time. Every day Soviet marines undertake dangerous sorties towards the German-occupied Sevastopol.