The kingdoms of Yav, Nav and Prav exist in peace and harmony under the rule of Veles, Perun the Thunderer and the prophetic birds Sirin, Alkonost and Gamayun. The insidious goddess of death Palyandra seeks to sow discord in the relations of the deities. Schoolchildren Dima and Matvey have to save our and the fairy-tale worlds from disaster.

In the early days of World War II, two Jewish brothers lost their parents during the Nazi invasion of Belarus. The boys were imprisoned in a German hospital and found many of their peers there. They were kept in inhuman conditions - hunger, cold, lack of sleep and rest. The only thing the boys had, their treasure - was a family portrait with mom and dad. Before the fascists separated brothers, each of them got half of it.