Abundant supplies of imported vaccine prove ineffective against an outbreak of foot-and-mouth disease epidemic in several population centers. Warehouse manager Rashkov has been found dead. Major Zahov has to investigate the case.

Nurse Nikolova takes care of the elderly. She faces various human destinies. Her patients spend the rest of their lives alone. They seek from her what they have not received from their own children. They love her. Nurse Nikolova touches on the complex problems of human existence.

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.

In September 1923, during the so-called 'anti-fascist' uprising, police chief's daughter Kita falls for a student with communist beliefs. Although loyal to the monarch, her father's paternal instinct force him to compromise but his retaliation against the rebels takes a devastating turn.

Boev, an enthusiastic form master, is trying hard to establish rapport with his final-year students. His frankness, buoyancy and good nature soon make him a universal favorite. The only one who does not approve of him is headmaster who loves his job, but is not aware of how dated his own views are and cannot understand the young teacher. Apart from this, Boev comes in into particularly sharp conflict with his colleague and childhood chum Kiril who is consumed by jealousy and the ambition to get promoted quickly.

The weaknesses and shortcomings in the work of some leaders in the years of the building of socialism are ridiculed.

A lawyer must decide whether to help a young man.