There's a ghostly green glow coming from the sea caves, then suddenly... it's gone. Later, a bitter feud between Warlock and MC D-Dub explodes on stage.

After the legendary Malibu Moondial is stolen, the Barbies are totally stuck — until they realize they may have overlooked a prime suspect.

A close call at the caves leads to a major breakthrough in the case. But to bring down a criminal mastermind, Brooklyn and Malibu will need backup.