Ukrainian folk tale. The hero of the story, Kotigoroschko sets off on an arduous journey to find his sister Olenka, who has been kidnapped by an evil dragon. Dangers lurk everywhere. Everywhere the submissive servants of the dragon fight him, but again and again, good-hearted people help the brave young knight survive the adventurous journey: they give him a sword, life-giving water and a flying ship. Finally Kotigoroschko enters the realm of the dragon...