Unberons are considered outcasts. Because they evolve only under the light of the moon, the other Eeveeloutions are afraid of them. They're forced to live deep in the forest forbidden to leave and the Eevees are told terrifying stories about the Umbreons that keep them out of the forest and afraid of them. But an Espeon named Lily is drawn to the forest. There she meets an Umbreon named Shadow and the two fall in love. But things are far more complicated than they know. Shadow's brother is determined to bring the Umbreons out of the forest and not only rule over the Umbreons but all the Eeveeloutions.