Historical-revolutionary film of the play by V. Vishnevsky. The action takes place in July 1920 on the Polish front. Against Polish invaders who occupied the Ukraine, the command of Red Army offensive organizes the Southwestern Front. Responsible for the operation assigned to IV Ctalin. The striking force of the front laid to become the First Cavalry Army under the command of SM Budyonny. Going from the Kuban 1000-kilometer march, she breaks through the Polish front and begins a rapid raid, smashing the Polish hinterland.