Grekov, the chief engineer of the instrument—making plant, is looking for a way out of the difficult situation at the plant: suppliers fail - they have to resort to assault, technology is disrupted, and quality suffers. The Institute of Production Management Problems, to which Grekov is seeking help, suggests introducing a new, as yet untested automated control system at the plant. Grekov agrees, although his colleagues, as one, believe that he chose the wrong time for this.

Amateur actors read stories from a book describing the 900-day siege of Leningrad during World War II.

About the trial of the October Revolution, which was organized in 1919 by the US Senate.

A story about the friendship between the children from Soviet Union and East Germany.

A nuclear power plant accident destroyed the RBMK reactor's technological channel, with the chief engineer and reactor calculations attributed. A special commission found fault and conducted full-scale surveys in Murmansk and Kirovsk.

An elderly man - a naive, impractical artist of the musical comedy theater - writes an operetta about goodness. His son is a resuscitation doctor, very businesslike and practical, and teases him all the time. The marriage of Petrov Sr. to the young ballerina Alena also did not add harmony to their relationship. But one day, father and son suddenly realize how necessary they are to each other... When the young stepmother begins to be in danger during childbirth, the son stops being sarcastic and fulfills his human and filial duty.

The beginning of the XX century. In Munich, the Leninist "Iskra", an illegal newspaper of Russian Social Democrats, began to appear. The Russian conspirator Konkordiya arrives from Munich at the railway station of the Bulgarian port city Varna. She meets the Bulgarian Ivan Zagubanski and gives him two suitcases with false bottoms, which contain a secret consignment of the latest issue of a newspaper. About the young, courageous revolutionary Ivan Zagubanski, who was one of the first couriers to bring Iskra from abroad. The film showed an ideological, moral clash of people preparing a revolution with the guardians of the royal order.

The modest and indecisive Lebedev in his dreams sees himself as strong and courageous. Mentally, he stands up for an unfairly demoted colleague, but in reality does nothing to help him. Oleg has been following the girl he likes for a whole year and is unable to force himself to get to know her. It is becoming more and more difficult for two Lebedevs to get along in one person ...