Barbie stars as Merliah, a surfer who learns a shocking secret: she’s a mermaid! She and her dolphin friend set out for an undersea adventure to rescue her mother, the queen of Oceana.

Barbie and her sisters along with their adorable puppies travel to sunny Hawaii for a dance contest; however, when the furry friends go missing, a suspenseful chase begins. Can they find them in time before Chelsea’s big dance competition?