Five kids from different worlds are stuck in a room - on a Saturday! When Raditch introduces Saturday detention, Sean, Ellie, Hazel, Jimmy and Toby are the first inductees. Despite being in different cliques, the students come to realize that they're... (more) all in the same boat together. With a school all to themselves, they have a lot more fun than they anticipated. But will these new-found friendships survive Monday morning?