Sevastopol. The submarine comes to the port to unload ammunition and fuel, evacuate the wounded to Novorossiysk. While unloading, a gasoline leak is detected, ventilation is needed. But it is impossible to do, since at dawn an air attack on the city and port begins. The boat is forced to lie down on the ground until dark. 14 hours at the bottom under the roar of bombers, of depth charges and poisonous gasoline vapors slowly spreading through the boat.