Film-makers come to a Soviet secondary school to shoot the advanced 9 "A" class. 9 "A" class under the leadership of a young teacher Klavdia Sergeevna on all indicators came out on top. But this well-being was based on showmanship and snitching. Gradually, the conflict between the class teacher and students grew into a real war. So who is the tuning fork for whom?...

A young worker, Kukushkin, falls in love with the innkeeper's daughter and asks for her hand in marriage. Having been refused, Kukushkin begins to practice throwing rings. The day comes when the lover wins all the property of a nepman and becomes a wealthy fiancé for his beloved.

About the life and work of the professional revolutionary Bolshevik F.A. Sergeev (1883-1921), known under the pseudonym Artyom. The film takes place in the period from 1905 to 1921 in Kharkov.