May 1942, war rages. Somewhere in Karelia, the five maids of a DCA battery, most of whom are not yet twenty, and their superior, Chief Warrant Officer Vaskov, are faced with an unforeseen situation: a German commando has landed in this place far from the front line. It is important to urgently inform the General Staff. But the connection is cut, the small group finds itself in complete isolation and can no longer rely on itself to act. The enemy's mission is to sink as far back as possible into the Soviet rear, and destroy any vital targets it finds on its way. Vaskov and his five daughters wage an unequal fight against the German commandos armed to the teeth ...