A young queen of the Malibu waves, Merliah, discovers her true identity as a mermaid after an unexpected incident during a surfing tournament. With her new friends, a dolphin and two mermaids, she embarks on an underwater adventure to save her mother and the ocean kingdom of Oceana.

Barbie in a Mermaid Tale
A talented surfer named Merliah, played by Barbie, discovers she's a mermaid and embarks on a thrilling quest to save her mother, the queen of Oceana, from danger.