Set in Austin, Texas, the series follows a group of rule-abiding students—Zack, Lawrence, Freddy, Summer and Tomika—who learn to take risks and reach new heights thanks to substitute teacher Dewey Finn, a down-on-his-luck musician who uses the language of rock and roll to inspire his class to form a secret band. Throughout the school year, these middle-school classmates find themselves navigating relationships, discovering their unknown talents and learning lessons on loyalty and friendships.
Tomika is a risk-taker, who has a passion for skateboarding and being the lead singer and bassist in the band.
Lawrence Dooley Tech-savvy and a talented musician, Lawrence is a pro on the piano. Talking to girls? Not so much. He has a hard time playing it cool and sometimes creates more problems than he solves, but his heart is in the right place! Lawrence isn’t the smoothest kid in class, but if you need an awesome light show or a killer keyboardist, he’s your guy.
Freddy Huerta is always down for taking risks in the name of fun. School is his playground and his carefree attitude keeps the class cool when things get crazy. A talented drummer and daredevil, he’d choose skateboard stunts over studying any day.
Dewey Finn Dewey is a hippie and poor person destined to be on top. He used to work in an ice-cream stand. His mother is a substitute teacher, and he said his mother loved the students, so he faked a teacher certificate and became the substitude teacher of 21-B. After Mrs. Calpakis came back, he became very emotional, but then was transferred to be a kindergarten teacher. However, the kindergarteners are too evil, so Mrs. Calpakis went to be a kindergarten teacher, and Dewey became an offical teacher for 21-B.
Zack Kwan has some of the best guitar skills in school. He’s also got some of the strictest parents, which isn’t the best combination for a wannabe rock ’n’ roller. He’s often torn between following orders and breaking the rules but luckily he’s great at talking his way out of trouble!
Summer Hathaway An overachiever with perfect attendance, schoolwork and organization come easy to Summer. She's one for helping people out and putting others before herself, like McKenna Daugherty in her favorite book "Terminal Heart". That’s why she makes a great band manager! Always prepared for every possible scenario, Summer relies on her best friend Tomika to keep her grounded. Thanks to the band, she’s finally learning to take some risks in the name of rock!