Film is based on the book "No ordinary summer" and is a sequel from "Early joys" (1956). Action is set in 1919 in the city of Tsaritsin (now Saratov) on the river Volga in Central Russia during the Russian Civil War. The main character Kirill Izvekov is now a commissar, and a rising leader in the Red Army. He shows courage aboard a battleship during the battle of Tsaritsin. He participates in the victory over the Vrangel Army, and becomes elected as the secretary of the City of Tsaritsin (Saratov). Kirill Izvekov often goes to the local Drama Theater. He is in love with the beautiful actress Annochka, and they are happy together.