High school doesn't really end after graduation. Whether you like it or not, it follows you around wherever you go. It may be in the back of your head, but it's there. Sometimes it comes out when you're around your old classmates, and you revert back to your 18 year old self, despite your best efforts. For Lucas, Noah, Jessie, Abby, April and Tyler, their upcoming 10 year high school reunion keeps inching closer and making them realize all of this. Each of them wants to separate themselves from their high school persona, for different reasons, but things keep happening to make them even closer to their former selves.