This time, Alyosha Popovich Dobrinya and Ilya Muromets, thanks insidious wiles of Baba Yaga, are the seven seas on a deserted island where the natives live and terrible Gomuma. In their absence, the merchant Kolyvan decide together with Baba-Yaga take the kingdom, and the power to take away from the prince of Kiev. To help the hapless governor comes horse Julius and wife heroes and their extended family.