Plot synopsis: 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...