In the last days of the war, a downed plane makes an emergency landing behind enemy lines. Nekrasov leaves the culprit of the disruption of the operation to the mercy of fate, for which he loses the rank of lieutenant and is suspended from flights. Returning to the village, he becomes the first tractor driver of the collective farm. But one day, having given up everything, he gets a job as a technician at the airfield...

At the ninth grader, Anvar, it would seem, everything is safe both in the family and at school. But the boy did not find a common language with his father, and an unclean person took advantage of this. Anwar, involved in extortion, could not reconcile his conscience with a dirty deed. Only the tragic death of the boy revealed the criminal.