Five years after the episode The Contest, Arthur, Buster, Muffy, Francine, Binky, Brain and Fern saw an AD for the new Magical Mari Records New Note Audition, where CEO of the company, 'Mari Jeanin' looks for a new band. After a bunch of failed auditions, Mr. Ratburn and Mari's brother, 'Patrick' recommended The Summer Sensations after telling her about the Summer Serenade, where Mari booked her first ever gig.

After being amazed by the beautiful notes, she allowed to be their manager. To get in touch with her childhood roots, Mari decided to move back to Elwood.

Now Arthur, Buster, Fern, Francine, and Muffy will give a Summer Sensation while Binky and Brain handle the special effects.

New Characters

Mari, 'Magical Mari' Jeanin- Patrick's younger sister and CEO of Magical Mari records

Voice actress: Paula Abdul

Abbie Cartrough- Fern's aunt and Doria's little sister who is the new secretary at Magical Mari Records. She divorced her Australian husband for nearly ten years.

Voice actress: Nicole Oliver

Carter Cartrough- Abbie's teenage son who works at Patrick's Chocolate as a pastry chef.

Voice actress: Cody Simpson

Kensley Leanchardson- Principal at Elwood Middle School with a mysterious past.

Voice actress: Nicole Oliver

Ty Mcarter- Elwood Middle School music teacher who supports The Summer Sensations, he is Bitzi's love interest.

Voice actress: Samuel Vincent

Tripp Dottrell- Maryann's father and head librarian at Elwood Middle School. Fern babysits his daughter Maryann.

Voice actress: Dave Foley

Alvaro Morillo- Magical Mari's on and off boyfriend. He's an international talent agent.

Voice actress: Fab Filippo

Harlow Walters- Fern's eight year old sister who is new to poetry.

Willis- Fern's four year old brother and youngest members of the Summer Sensations groupie, 'The Summer Solstice Squad' which consists of DW, Kate, Emily, Vicita and James.

Voice actress: Tara Strong.

Rayling Reef- Magical Mari's former band, who broke up due to the dummer wanting a solo career.

Settings

Elwood Middle School- The school that the band goes to.

Magical Mari Records(East Coast Division)- The new record producing company where The Summer Sensations record their songs.

Patrick's Chocolate- A chocolate/candy/bakery shop where Patrick owns and where The Summer Sensations work.