Plot

Barbie "Malibu" Roberts and Barbie "Brooklyn" Roberts turn into mermaids to save a sea kingdom in an epic underwater adventure.

Malibu and Brooklyn (Barbie and Barbie) goes on a musical adventure with Chelsea, Stacie and Skipper, but a mermaid ceremony gets interrupted, so in need for help, Isla calls Malibu, now Malibu and Brooklyn along with Malibu's sisters turns into mermaids to get powers and save Pacifica, while getting new friends in the process.—hannahmakesstories

As the day of the centennial Ceremony of the Mermaid Moon approaches, Barbie and her sisters Skipper, Stacie, and Chelsea, along with their friend Barbie "Brooklyn" Roberts, receive an urgent message from an old friend. And after the exciting experience in Barbie: Dolphin Magic (2017), the team reunites with young mermaid Isla, and together they embark on a fascinating underwater adventure in the realm of Pacifica. As eight extraordinary mermaids compete for the coveted Power Keeper title to ensure the safety of the marine civilisation, unexpected new skills are waiting to be discovered. Will the two Barbies and their mermaid friends embrace their inner powers and work as a team to save Pacifica?—Nick Riganas

Join Barbie "Brooklyn" Roberts, Barbie "Malibu" Roberts, and her sisters Skipper, Stacie, and Chelsea on an underwater adventure as they transform into mermaids to help save the world of Pacifica. In Barbie Mermaid Power(TM), Barbie and Barbie are summoned by Isla (from Dolphin Magic) to compete to be the underwater Power Keeper in a series of challenges designed to find their inner powers. Through these competitions, they discover whether they are mermaids of Earth, Air, Water, or Fire, all while making new animal and mermaid friends. In this fish-tale of friendship, adventure, and bravery, Barbie, Barbie, and family experience first-hand what it's like to balance the worlds above and below the sea and learn a lesson in finding their inner powers along the way.—themoviedb

Join Barbie "Brooklyn" Roberts, Barbie "Malibu" Roberts, and her sisters Skipper, Stacie, and Chelsea on an underwater adventure as they transform into mermaids to help save the world of Pacifica. In Barbie Mermaid Power, Barbie and Barbie are summoned by Isla (from Dolphin Magic) to compete to be the underwater Power Keeper in a series of challenges designed to find their inner powers. Through these competitions they discovered whether they are mermaids of Earth, Air, Water, or Fire, all while making new animal and mermaid friends. In this fish-tale of friendship, adventure, and bravery, Barbie, Barbie, and family experience first-hand what it's like to balance the worlds above and below the sea and learn a lesson in finding their inner powers along the way.