Moscow is destroyed, its inhabitants are left at the mercy of hunger and cold. A culprit is quickly found: Vasilisa Petrovna, the girl with wild black hair and emerald green eyes. While Vasya must fend off the attacks of the Muscovites, the Grand Duke, in his thirst for revenge, allies himself with the wrong partners and threatens to lead his realm straight to ruin. But that’s not all: An ancient creature returns to Moscow, putting the world of magical beings in danger. To save them and her homeland, Vasya once again needs the help of the winter demon Morozko. But this time, the two arrive too late...