After getting braces and glasses, Kacey Simon falls from the popular group. She forges unlikely friendships with the members of the band Gravity 4 featuring Stevie, Zander, Kevin and Nelson. As lead singer, Kacey takes the newly renamed Gravity 5's musical success to new heights while igniting a musical rivalry with The Perfs featuring her former best friends and fellow performers, Molly and Grace.
Who's going to clean up the band's crib? They make bets to see who can hold out the longest from their favorite things.
Kacey feels pressure to fit in when she gets the band invited to a popular boy's party.
Kacey must find a way to replace Zander's entry for the school art contest after she accidentally breaks it.
The band works to create a music video that will top the one done by the Perfs.
Kacey runs for class president but must make a decision when Kevin also runs for the office. She also tries to get Big Time Rush to perform for a school dance.
The gang is in charge of the school news broadcast and both Kacey and Molly are vying to be Head Reporter. As the producer, Stevie gets to choose and picks Molly because she's generally more serious. Kacey feels slighted and sets out to prove that she can do a better job. Stevie decides she'll let them compete, but when Molly files a hard-hitting report about the chlorine content in the school pool, Kacey can't find a story big enough to match it. Desperate to beat Molly, Kacey goes live with a story based on hearsay and sends the whole school into a mad panic. When Kacey realizes that the fungus that she found was just mold, not at all harmful, she feels pressure from her band mates to tell Stevie the truth, especially since the jocks from the football team are aloud to work out in Gravity 5's practice room due to the gym being shut down.
Kacey has a crush on a senior boy, Dean Hollis. Just as she's about to get a date with him, Molly pulls a prank, leaving Kacey humiliated. Gravity 5 pulls a revenge prank on The Perfs, but it backfires, leaving Kacey and Zander's hands glued together. The situation threatens to sabotage Kacey's big date with Dean.
Kacey is determined to outshine Molly at the school dance. She sends Stevie undercover to find out what Molly will be wearing, but when Stevie realizes she's being used, she comes up with a plan of her own. Meanwhile, the boys have a bet; whoever doesn't get a date to the dance has to wear a dress to it. After Zander slips up and a girl turns him down and goes with Kevin, he is devistated. Kacey goes to the dance with Nelson to make Zander wear a dress. Stevie goes back to Gravity 5, and Grace is once again the second Perf. At the dance it turns out that Stevie had planned to have Kacey and Molly wear the same dress, which works. Unfortunatly, Zander is also wearing the same dress.
Kacey misses sitting at her old lunch table and will stop at nothing to take it back from The Perfs. Meanwhile, Kevin and Nelson lead a protest against the lunch ladies, who turn all of their favorites foods into gross stews
Kacey and Nelson have to share a birthday party, but Kacey takes control of the party planning and doesn't want Nelson's input.
Kacey gives away too many smoothies at her part-time job, getting herself and Stevie fired.
Kacey gets invited to different activities on Halloween and can't decide what to do, and then she has a wacky dream in which her friends are vampires and werewolves.
In this episode, every kid at Brewster High is required to join a sports team. Kacey reluctantly joins Stevie's basketball team, only to discover she's pretty good. But Kacey's drive to win puts their friendship to the test! Meanwhile, Nelson creates a snacking machine for him, Kevin, and Zander, to feed them snacks without getting up or moving. When the guys accidentally set it on warp speed, Nelson and the guys are forced to destroy it.
Zander gets very secretive about a love song he's writing, so Kacey and Stevie peek at his lyrics and jump to conclusions about who inspired him to write the song.
The Perfs have front row seats for a Cee Lo Green concert; Gravity 5 can't get tickets. Masquerading as arena employees, Gravity 5 sneaks into the concert through the back way, but when security catches on, they have to run for their lives. Cee Lo Green decides he wants Gravity 5 to tour with him. But there's a misunderstanding - the star only wants Kacey. Gravity 5 is happy for Kacey, but the Battle of the Bands is approaching and now they have no singer.
Stevie is too shy to ask her crush to the school dance so Kacey asks him for her through a singing telegram and gets an unexpected response. Zander, Kevin and Nelson are all assigned telegrams that wildly backfire.
Gravity 5 tries to get their own yearbook page, just like The Perfs have. The Perfs, of course, are two steps ahead.
Gravity 5 and the Perfs make an audition tape for a TV show; Kevin tries to track down a TV host after he forgets to mail the group's audition tape.
The Perfs' volunteer project gets more attention than Gravity 5's, causing Kacey to use a foot injury to her benefit.
The kids embark on a school camping trip, and Grace steps up and takes on an authoritative role.
Kacey is used to being great at everything, but when she has to design her own clothing line as part of a competition to win an internship with a famous designer, she doesn't rock the competition as much as she had hoped. Meanwhile, Kevin opens a mobile bistro at lunch time with Nelson and Zander after being fed up with the school's nasty lunches.
The principal imposes a new school-uniform policy in response to Kacey and Molly's intense fashion rivalry, and the girls must join forces to get it overthrown.
Mr. March's beloved tennis ball gets ruined while Kacey is manning his flea-market booth, so she enlists her band and the Perfs to help her find a replacement for it.
Gravity 5 gets locked inside the mall on the night before Christmas, and as if things weren’t bad enough for Kacey, Molly is locked in with them; in a special Christmas celebration, the entire cast sings their rendition of Deck the Halls.
