The story tells about the difficult post-war childhood of the main character Sergei Serov, whose father died of wounds shortly after the war. In the village where their family lives, there are many bandits and hooligans. They are trying to dominate teenage high school students. What heroes and idols do teenagers choose? For Seryoga, there is one hero - his older brother Mikhail, candidate master of sports of the USSR in football. Even after the tragic death of his brother, Sergei remains with his family...