Cooper just wants to spend the summer before 7th grade drawing and having adventures with his best friend, Nacho. Anything to keep his mind off the fact that his dad's new girlfriend and his mom's announcement that she's going to start dating.

But when one of his adventures with Nacho goes too far, Cooper's parents freak out. Either he joins the Boy Rangers, a dorky club that's all about discipline and rules, or that dream cartooning camp at the end of his summer? Will get erased.

At first it's not so bad--the troop is a disorganized mess. But then a new scoutmaster starts. Mr. Pierce is a gruff ex-Marine who's never worked with kids before, especially not a ragtag team of misfits like Troop 19. As he tries turning them into a lean, mean, badge-earning machine, Cooper longs for freedom. He doesn't want to break the rules, but the rules are going to break him!