The Soviet army is approaching the Bulgarian border. Many government ministers and army officers prepare to flee the country. The partisans take over the key administrative buildings. At the War Ministry, the commander of the armored brigade Major Essev hesitates between his sense of honor as an officer and his patriotic duty. He takes the side of the partisans.

A movie drama telling the story of the crew of a Bulgarian cruiser in the historic year of 1918. The crew of the cruiser, sent to Sevastopol for a planned intervention against Russia, learned the true purpose of the campaign and the fact that the war was over. The sailors refused to obey the commander. The communist Boyan Milev took command. According to the wishes of all the sailors, the cruiser should sail back to Bulgaria the next morning. However, among the sailors there is a traitor who helped the arrested captain to get free and damaged the ship's equipment, so the "Nadezhda" will not be able to sail the next day. The rebels are taken to Bulgaria, where they will be brought to justice.