People living at a seashore town are frightened by reports of an unknown creature called "the sea devil". Nobody knows what it is, but it's really the son of doctor Salvator. The doctor performed surgery on his son and now young Ichtiander can live under water. This gives him certain advantages, but also creates a lot of problems.
A boy named Volka discovers an ancient vessel on the bottom of a river. When he opens it, a genie emerges from there. He calls himself Hassan Abdurrahman ibn Khottab, or in Russian style Khottabych. Grateful Khottabych is ready to fulfill any of Volka's wishes. But it appears that Volka should use the powers of the genie carefully, for they can have undesirable results.
The film tells a story about the extraordinary journey of the modest little girl Gerda. She is looking for her friend Kai, who was kidnapped and taken to her kingdom by the powerful evil Snow Queen. In search of her beloved friend, Gerda ends up in the castle to the cunning, insidious and at the same time funny king, meets forest robbers. On the way, the girl will have many obstacles before the decisive battle with the Snow Queen. But Gerda’s faithful heart will overcome all adversity...
