Dewey, a down-on-his-luck musician, poses as a substitute teacher at a prestigious prep school and uniquely inspires his overachieving students to take a risk and create a secret rock band.

When Summer asks Tomika for help to become the lead singer, Tomika must choose between helping her friend or going for the role of lead singer herself.

Principal Mullins installs surveillance cameras in all the classrooms, putting the band's secret in danger.

While searching to find her role in the band, Summer sets out to become the band's songwriter, but has difficulty finding any true inspiration.

When Zack's dad catches him on the electric guitar at home, he moves Zack to another class with less distraction, causing Dewey and the kids to rebel.

The band books its first gig, but when the members cannot decide on a name, they split into two bands.

When Tomika tries too hard to be like her favorite artist, she unintentionally hurts her friends; Dewey tries to prove his music credibility by claiming to know a music legend.

Zack gets poached by another band right before the Battle of the Bands audition, and winds up learning a lesson about loyalty.

After losing their entrance fee for the Battle of the Bands, they must work together to earn enough money again.

When the group's music teacher holds practice every day for the school concert, they must juggle both bands while protecting their secret.

When a rival group steals their song at the Battle of the Bands, the group decides to use an original song to show off their rock star power.