In 1942, as the German-Soviet War intensified, the daily life of Serafima, a girl living in a village near Moscow, suddenly collapsed. German troops launched a surprise attack, brutally slaughtering the villagers and her mother. Just moments before she herself was shot, Serafima was saved by Irina, a female soldier of the Red Army. To defeat the enemy who took her mother and others, Serafima trains relentlessly…