The younger brother from the common people intends to fight for a salvation of the exiled princess, suffering from a dark magic curse.

Vasilisa Prekrasnaya, (Vasilisa the Beautiful) is about a father whose three sons go out to finds themselves brides. Two of the boys come home with perfectly normal girls, but the youngest brother, Ivanushka, brings home a frog from the marshes. His father finds this most curious, but what he does not know was that the frog was actually a beautiful girl named Vasilisa, who was cursed...