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Wilkan, an 11-year-old Slavic boy, learns that his beloved grandfather must leave the tribe in order to await his death in solitude. When Wilkan tries to prevent that, his actions put the entire village in trouble: a powerful wizard turns villagers into wolves and Wilkan's father into a duck.
Only the magical Alatyr stone located inside the Tree of Life and Death has the power to counter the curse. Wilkan and his folks set out on a dangerous journey, facing many difficulties and as they reach the tree, it turns out Alatyr has an unimaginable price – human life. Wilkan must confront his greatest fears: say goodbye to his grandfather and face the evil awaiting him back in the village.