When their regular teacher returns, the children must find a way to get Dewey back and keep their rock and roll dreams alive.
Summer's attempt to share a locker with Freddy sets off a chain reaction of locker-switching that puts the whole band out of sync.
Lawrence tries to prove his value to the group by taking over the production of their first recording, but his methods create a rift in the band.
The band is booked to perform in disguise at the school dance so they can keep their identities a secret; Summer decides to reveal her feelings to Freddy.
After being hypnotized to sing well, Summer spars with Tomika over auditioning for their favorite singing competition show; the boys use hypnosis to take advantage of Principal Mullins.
When Principal Mullins goes home sick, Mr. Finn's class decides to celebrate Halloween in school.
When the cafeteria shuts down, Zack starts a food truck, only to find himself in competition with Justin's truck.
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