The film tells about the outstanding role in the history of Ukraine of the legendary ruler of Kievan Rus - Prince Yaroslav the Wise. Even as a child, being a lame boy and being bullied, he did not even suspect that he would become the one who would unite the disparate lands around Kiev and create a powerful medieval state. An important role in his reign was played by his wife - the Swedish princess Ingigerd. Together they initiated a far-sighted matrimonial policy, strengthening international alliances through the marriages of their children with European monarchs. As a result, Yaroslav's three daughters became queens of great powers - Norway, France and Hungary, consolidating the influence of Kievan Rus on the political map of Europe.