A new school year starts with "Brooklyn" and Rocki joining Golden Beach High. A mysterious new student named Leo enrolls at the same time a magical gem is stolen from Mesmer. Barbie and Barbie suspect something strange is happening in Malibu.

"Brooklyn" directs the school play with help from Daisy while Rocki tries to teach Chelsea magic in preparation for her spelling contest. Ken and Peggy fly to Mesmer to get help from Elvy and search for the missing air gem.

Skipper invites Leo over to the DreamHouse for her new club. Barbie, Barbie and Teresa hope to get information on the stolen gem from the Bunnycorn. Leo reveals that he is more than meets the eye and is searching for more than one magical gem.

"Brooklyn" and Leo release Victory, a unicorn girl, from a magical book. Barbie and Barbie take their new friend to the fair, where a fortune teller makes a prediction about finding the missing gems and helping Victory get home.

"Malibu" and Leo help a friendly vampire named Rick, while Ned and Ted ask Rocki for three wishes in exchange for keeping Leo and Rocki's secrets. "Brooklyn" and Teresa travel to Mesmer to help Victory find her sisters, the Unicorn girls.

"Brooklyn" searches for the water gem with her new mermaid friends. Teresa confronts Dru Charles about a mysterious glow in her house. "Malibu" and friends help search for a centaur village and end up meeting Alo the Alicorn.

"Brooklyn" tries to escape Banishment Island and the evil plot of Will the Wizard Lizard. "Malibu" returns to Pacifica to look for "Brooklyn" with the help of mermaid friends old and new. Meanwhile, the friends confront Alo the Alicorn for information on Leo's lost family.

After "Brooklyn" and "Malibu" return from their mermaid adventure, "Brooklyn" continues to search for information about Bunnycorns. "Malibu" helps Skipper find their parents, who have been turned into babies, while Leo, Rocki, and Alo go to Mesmer.

"Brooklyn" tries to save the school play and help Rocki overcome her stage fright. "Malibu" and Teresa investigate Dru's home for more clues, and Ken, Leo, and Alo hide the magic gems.

When the friends find themselves separated, "Brooklyn," Leo, and Rocki confront Dru while "Malibu," Ken and Teresa meet Leo's brothers. Trapped in an alternate dimension, Alo knows their only hope is to summon the Sapphire Fairycorn.

Dru uses the gems for her evil plan and captures the Sapphire Fairycorn. She looks to capture all the magic of Mesmer next!

Back to Malibu, Rocki struggles with losing her powers and Leo returns to his family. With the stars of the show out of action, it's up to "Brooklyn" to save the play!