The film starts with Elina flying through the air, still having trouble believing that she has wings. She is soon sought out 의해 a juvenile sea-butterfly fairy who witnessed Nalu, the merprince Elina had befriended in the 이전 movie, being kidnapped 의해 several of Laverna's goblin-like Fungi at the Crystal Cove. She was unable to intervene but 나루 was able to send her to find Elina for help.

Laverna, who was banished to the Bog of the Hinterlands 의해 the Enchantress' magic, is seeking the Immunity Berry - a berry that makes whoever eats it immune to all magic, past, present and future. Nalu...