There’s something dangerous about the boredom of teenage girls. Coach said that once. She said it like she knew, and understood.

When Colette French arrives at school one fall and takes charge of the cheer squad, she brings a hint of threat. Sleek, remote and careless, she transforms the girls into warriors - and rivals. Addy and Beth find that for the first time they have secrets from one another. But their mentor is playing her own deadly game, and there is everything to lose.