After returning from the army, Rustam easily and naturally fits into the environment of workers from a petrochemical plant. The almost boyish carelessness and irresponsible pastime is replaced by an understanding of one's own need for a common cause, and a sense of inner dignity arises. This is what makes Rustam not reconcile himself to the fact that the brigade in which he works is among the laggards and is characterized by indiscipline. Having become a foreman, Rustam tries to create a healthy working atmosphere, takes part in the fate of Sagat, who recently returned from prison, rejects the attempts of the head of the shop to bribe the trust of the brigade with a "fake" salary. And outside the factory, he acts from a position of active kindness, although sometimes, helping others, he forgets about himself, does not have time to sort out the relationship with his girlfriend Lucy...

The hero of the painting is a young man who is engaged in deciphering ancient cuneiform inscriptions. His life flows exactly according to schedule, everything is predetermined, calculated, taken into account. But suddenly events begin to develop so rapidly, unforeseen circumstances assert themselves so completely that Yunus cannot get to his own wedding for a whole day and becomes an active participant in many events taking place on that day in the city...

The events in the film revolve around the children's railway. Young railway workers have to confront the hooligan actions of a group of teenagers. One of them, Kamil, detained after another attack on an empty railway station, gets acquainted with her boss, Tahir Usmanovich, and young railway workers. Having met with their sympathy, a good attitude towards himself, Camil overestimated his actions and brought his friends to the children's railway.