Depicts Russian Tsar Peter the First's conquest over the Swedes and his son Aleksey's plot to overthrow him.
Adventures of the medicine professor during reserve duty.
Military maneuvers are being conducted in the Kuban villages of Dalnyaya and Kochevskaya, with the participation of village Cossack detachments. The Kochevskaya reconnaissance unit is led by the dashing Cossack Mikhail, while his fiancée Dasha Gorkunova is a communications officer for the "enemy" unit. Dasha cleverly deceives her "enemy" and, having escaped from her pursuers, gives instructions to "her own."
