The evil Queen of the Boggarts is determined to invade the real world and only the Keyholders and their counterparts from the magical world can stop her.
Wanting to help a lost baby polar bear return home, Kiki Coral and her mermaid friends worry that the cost of the bear's transportation will prevent them from seeing a concert performance of their favorite boy band.
A young mermaid's friends turn her small birthday party/sleepover into a big extravaganza, complete with a scavenger hunt, scary stories, crafts, a makeup session, and "glow-in-the dark Shell Wars."