Massie Block forms a new clique, but old rivalries, new relationships, and petty jealousies threaten to destroy Massie and her friends.

Massie, hurt that friends have caught the eyes of boys she was interested in, hires actresses to pretend to be her new friends while Claire, who feels somehow responsible, makes a dramatic move to set things right.

Mean Girls meets Middle School in The Clique... The only thing harder than getting in, is staying in. Enter Claire Lyons, the new girl from Florida in Keds and two-year-old Gap overalls, who is clearly not Clique material. Unfortunately for her, while they look for a new home, Claire's family is staying in the guesthouse of the one and only Massie Block -- Queen Bee of Octavian Country Day School. Claire's future looks worse than a bad Prada knockoff. But with a little luck and a lot of scheming, Claire might just come up smelling like Chanel No. 19. Meet the rest of the Clique: Massie Block - With her glossy brunette bob and laser-whitened smile, Massie is the uncontested ruler of The Clique and the rest of the social scene at Octavian Country Day School, an exclusive private girls' school in Westchester County, New York. Massie knows you'd give anything to be just like her. Dylan Marvil - Massie's second in command who divides her time between sucking up to Massie and sucking down Atkins Diet shakes. Alicia Rivera - As sneaky as she is beautiful, Alicia floats easily under adult radar because she seems so "sweet." Would love to take Massie's throne one day. Just might. Kristen Gregory - She's smart, hardworking, and will insult you to tears faster than you can say "my haircut isn't ugly!"

Massie Block: Getting back into Octavian Country Day was a piece of sugar-free cake, compared to Massie's next goal-finding the key that unlocks an ah-mazing legendary secret room at OCD! Alpha eighth grader Skye Hamilton and her clique have stashed the key in the bedroom of one mystery Briarwood boy, but who? Whoever finds the key gets access to the secret room for an entire year and the prestige that comes along with it. But what happens when LBR Layne seems to be getting closer? This is way more than a matter of life or death, it's a matter of in or out! Kristen Gregory: Always been a star on the soccer field, but her style gets majorly cramped when her friends are forced to join the team. They better start kicking those soccer balls or Kristen's going to start kicking some . . . ! Alicia Rivera: Uses her skills as a gossip reporter to scheme her way into the rooms of all the Briarwood hotties! Dylan Marvil: Heard depression makes people lose weight. Is hoping for some sad news soon because she's popping donut holes the way some people pop Tic-Tacs. Claire Lyons: Being famous isn't all it's cracked up to be! Her agent confiscates her gummies, and forces her to do some very bad things to make her more "edgy." Worst of all, her constant meetings with lawyers and movie execs are eating into her time with the P.C. and with Cam! Is being a Hollywood starlet worth the Gucci-high price tag?

Weeks before Christmas. Alicia and Olivia are on their way to Manhattan so the Teen People editors can do a story on them about winning the Octavian Country Day uniform design contest. When Massie finally processes that the girls who hijacked her victory are also modeling for Teen People, she is livid. It should have been her. 'Ehmagod, what will everyone think when they find out it wasn't me who was asked to model? I will be SO over.' Massie decides it's time to get revenge. This snake can not lay idle in the weeds for one more second. Kristen and Dylan throw out terrible 'revenge' suggestions and Massie vetoes them all. She will think of something! But first she has to go home and exfoliate. The social minefields of Westchester County's most privileged middle school girls drive the page-turning action of this addictive series, set in New York City's most elite suburban county. The Clique . . . the only thing harder than getting in is staying in.

A tragic haircut leaves Kristen looking manlier than a New York Jets linebacker. Will she be condemned to a season of trying to find cute hats when, as everyone knows, hats are so over? Meanwhile, Claire got everything she wants -- new camo Converse high-tops, bag and bags of gummies, and best of all, her first ever cell phone, from Massie. Although Claire's now an official member of the Clique, presents don't matter to her -- all she really wants is her first kiss from Cam, of course!

Massie gets BE-yoo-tiful: After Massie Block gets kicked off her high horse and out of her ultra exclusive Westchester riding camp, her parents force her to do the unthinkable-find a summer job. Not one for dog-walking or brat-sitting, Massie comes up with the ah-bvious solution: She'll be a sales rep for the cosmetics brand Be Pretty. Massie fully hearts her new role as fairy gawdmother of makeup-until she discovers transforming LBRs into glam-girls takes more than a swish of her royal purple mascara wand.