Struggling to cope after a move to the city with his mother, Elmer runs away in search of Wild Island and a young dragon who waits to be rescued. Elmer’s adventures introduce him to ferocious beasts, a mysterious island and the friendship of a lifetime.

In a time of superstition and magic, when wolves are seen as demonic and nature an evil to be tamed, a young apprentice hunter comes to Ireland with her father to wipe out the last pack. But when she saves a wild native girl, their friendship leads her to discover the world of the Wolfwalkers and transform her into the very thing her father is tasked to destroy.