All teenagers make mistakes, especially when they're drunk. Summer Blake is a shy, timid girl who likes to stick to the rules and stay out of trouble. So when her best friend Carrie invites her to a huge party that everyone is going to, she begrudgingly accepts. At first, she wants to get the hell out: It's a teenage party, something's bound to go wrong, right? But when Carrie gets Summer drunk, she see's a new side of Summer: a funny, easy going girl who just wants to have a good time. Who knew that after this night, one mistake would change her and her life, forever.