It’s move-in day at MacKendrick Prep. Among the new students are Jodi and Sun Hi, and a mysterious roommate they have yet to meet. Meanwhile, another freshman, Caleb, looks for a part-time job to accommodate his DJ skills. With advice from the spirit squad captain and resident popular girl, Valerie, he checks out the “super cool” roller rink, which turns out to be anything but. Meanwhile, MacKendrick drama Teacher Mr. Melwood Stark announces that there will be a school musical this year – but states that freshmen never, ever get the lead… a fact that Sun Hi is determined to change. And Jodi and Sun Hi’s roommate, Corki, finally arrives – but they don’t get any answers about her private life: Corki remains a mystery. Who is she?

Corki throws herself into her studies while Sun Hi and Jodi start a band, with or without their roommate. Determined that all three girls should participate, Caleb encourages Corki to join in – and also imagines the roller rink’s potential as an awesome teen club. Meanwhile, high school quarterback and dreamboat Jared vies to be the lead in the upcoming musical, even though Mr. Stark hasn’t even announced it yet. Sun Hi resents Corki’s reluctance to participate in the band, but Jodi negotiates a truce between the two. It’s then that the girls discover Caleb’s not the roller rink manager he said he was, and the club is not exactly a club. Way to kill the dream, Caleb.

Jodi and Sun Hi fail a math test, making them ineligible to audition for Mr. Stark’s just-announced school musical, The Wonderful Wizard of Oz. Corki encourages them to apply for a make-up exam and helps them study so they can pass. But will they? Meanwhile, Jodi reveals she’s interested in Caleb… no biggie… or is it? Sun Hi’s search to find out about Corki’s true identity intensifies, and Caleb comes through by overhauling the tired old Ryker’s Rink into a cool new teen dance club he calls Club Ry Ri. But all may not be perfect in MacKendrick Prep land, when Jodi inadvertently crosses Valerie and her spirit squad girls. Valerie decides that she does not like Jodi, Sun Hi and Corki… which may make school life difficult for our heroines.

Sun Hi continues to try to uncover Corki’s true identity. Meanwhile, spirit squad captain Valerie interrupts the band’s rehearsal to ask Caleb to compose a cheerleading song for the upcoming football game… but in reality it’s to secretly record the girls’ dance moves. Jodi soon discovers that Valerie has stolen her moves and presented them as her own. With help from Sun Hi, Corki and Caleb, Jodi proves that Valerie stole her moves. All seems well until the kids discover that the football game Valerie mentioned is Friday night – the same night as their band’s premiere at Club Ry Ri. Will their first performance be a flop?

When the band’s big debut conflicts with the school’s mandatory football game it means there will be no audience for the concert. As the big night approaches, Sun Hi is so stressed about the idea of no audience that she loses her voice. Now what? Meanwhile, Jared petitions against Mr. Stark’s choice of school musical, because it has no male lead (a part he’d happily fill). And Corki bails from performing with the band at Club Ry Ri, until Jodi offers her a mask to disguise herself. The band manages to go on, which results in three things: Jared’s interest is piqued by the mysterious and lovely ‘Masked Girl,’ Ms. Diona discovers that MacKendrick Prep students are at Club Ry Ri after curfew, and worst of all, that Caleb Davis is to blame.

MacKendrick Prep ramps up to Homecoming. Jodi wants to ask Caleb to the dance, but he is too distracted by Ms. Diona’s punishment for organizing the ‘illegal’ performance at Club Ry Ri to notice. Meanwhile, Jared invites Corki into the popular clique, where she hangs with him, Valerie and the Spirit Squad girls – much to the dismay of Jodi and Sun Hi. Though they try to support Corki’s new choice of friends and newer ambitions – including running for Homecoming Court – it may be too much for Jodi and Sun Hi. Which social circle will Corki choose?