When Renata is chosen to play the lead role in the school musical, students who used to ignore her start saying hello and congratulating her in the hall. She is happy until it becomes evident that Karin, a wealthy girl who expected to get the lead role, will go to great lengths to ruin Renata's reputation.
At a Battle of the Bands event, Ace and his best friend Denny notice that girls like musicians, no matter how dorky the dudes might be. Having, so far, been severely challenged when it comes to meeting girls, they decide to start a band. Ace discovers that he loves playing guitar and electric bass. While Denny tweets their every move and their clean-freak drummer, Pig, polishes everything in sight, Ace tries to write a song that will win at the next local teen songwriting contest. It's more difficult than he thought it would be. When Denny brings a great tune to rehearsal, Ace is devastated that Denny, who rarely practices, is a better songwriter than he is. The contest is only days away when Ace discovers that Denny stole the song, and Ace has to decide if winning is worth the lie.
Sam Campbell's school team, the Laggan Lairds, always loses. When someone suggests that their name be the Laggan Lard Butts, Sam thinks the team should change its name. What is a Laird anyway? The basketball coach agrees, and soon the whole school is involved in an election for a new team name. Sam and his friends nominate the name Lard Butts. When the basketball team starts winning games after a warm-up cheer of "Go Lard Butts!" it seems the Lard Butt campaign might actually win the election.
Justin is fascinated with the aged guard dog at the corner store. He names it Smokey and sneaks the dog treats. Smokey belongs to a company that supplies working dogs to local businesses. Justin is thrilled to get a job working for Smokey's company, until he learns about the mistreatment of the animals. When Justin can't shake his suspicion that someone in the company is involved in a rash of thefts, he tries to quit. But Justin knows too much, and his boss won't let him go.
Rufus and his sister Alexa hate each other at the best of times. When Rufus's friend Phil manages to hypnotize Alexa, Rufus is ready to enjoy the power. They begin by ordering Alexa to be kind to her parents and Phil. The plan backfires when Alexa sweetly suggests canceling an expensive family vacation in favor of a week at home playing board games. Then Alexa turns on the charm with Phil and suddenly Rufus has to deal with a lovesick amateur hypnotist. Rufus is certain it can't get any stranger until Alexa, still in her hypnotic state, is kind to the brother she's always hated and Rufus is more confused than he's ever been.
The first flash mob Ian puts together himself is a sixty-plus person, four-minute pillow fight in a department store. His friend Oswald is thrilled with the event, but Julia, the one Ian really wants to impress, is still convinced that flash mobs are stupid. While Ian tries to prove Julia wrong by initiating flash mobs with political impact, Julia is busy waging war with the strict new principal at school. When Julia goes too far and gets herself suspended, Ian sees an opportunity for a relevant and persuasive flash mob.
Dorf is all about skateboarding and so far that's worked out fine. But now that he's in a new city, the terrain has changed. He's no longer free to skateboard where he wishes, school is more difficult, and his passion for skateboarding garners him the nickname and reputation of a freak. With daring stunts he gains the grudging respect of local troublemakers, but he needs to tap into another kind of courage to effect real change.