Fifth grade has just started, and the school bully, Nadia, already rules recess with an unfair Playground Tax. Robin refuses to be pushed around, but all she can think about is winning back her best friend, Mary Ann, after a disastrous fallout over the summer. To do so, she will have to stand up to Nadia, face the wrath of Assistant Principal Johnson, and become a legendary outlaw at Nottingham Elementary—all while forming a merry band of new friends along the way.