 The sons of the robber clan patriarch Kozlík ambush a small caravan travelling to the nearby Mladá Boleslav in winter.One man escapes, turning out to be the new Bishop of Hennau and an important ally of the Czech king, while the two captives the clan takes are the Bishop's son and his assistant.Mikoláš, one of the sons, encounters the neighboring clan leader Lazar scavenging at the site of the ambush.