As the only member of the Pretty Committee clique not going on an exotic summer vacation, middle-schooler Kristen might just find romance sticking around to tutor math and attend a secret summer school for gifted students.

Celia and Djuna ruled their clique of friends with dual iron fists. But when Djuna disappeared while the duo was walking home together, Celia buried the terrible truth of that day deep down inside. Now, twenty years later, Celia is unable to consciously keep her secret any longer. Despite her success, her personal life has fallen stagnant, and, buried under the weight of her awful past, Celia returns to her hometown to confess her sins.

In order to rid herself of a spirit that is possessing her, Lindsay Cavanaugh must return to the prestigious but eerie Marlwood Academy, where she discovers deeper secrets and greater reasons for distrust.

When seventh-grade twins Payton and Emma switch places, they shake up the social hierarchy at their new middle school.

After an act of revenge, prompted by her unkindness towards another girl, causes popular and stylish Lizzie Lane to be ostracized by her usual group of friends, Lizzie befriends Stella, a weird new girl at her school who offers to help Lizzie exact her own revenge by teaching her about the nature and the possibilities of "magick."

Six high school kids, two eighth-graders, and six little kids trapped together in a chain superstore build a refuge for themselves inside. Outside, a series of escalating disasters, beginning with a monster hailstorm and ending with a chemical weapons spill, seem to be tearing the world -- as they know it -- apart.

Regina, a high school senior in the popular--and feared--crowd, suddenly falls out of favor and becomes the object of the same sort of vicious bullying that she used to inflict on others, until she finds solace with one of her former victims.

As the sixth season begins moments after the season five finale, Aria, Emily, Hanna, Spencer and Mona are trapped outside the "dollhouse" where their tormentor, Charles, has been keeping them - with nowhere to run. Angered by their attempted escape, Charles' games take a more demented and darker turn. As the girls struggle to survive, Ezra, Caleb and Toby continue the fight to find the girls with or without Rosewood Police Department's help. Charles'...

Five girls in the Clique each face challenges during eighth grade -- from the soccer field to getting the key to the secret room at OCD from a Briarwood boy.

When Massie is kicked out of her exclusive riding camp and her parents insist that she get a summer job, she becomes the highest-selling Be Pretty Cosmetics girl ever by ignoring the company's philosophy.