McKenna has always done well in school and in gymnastics, but when she starts fourth grade, school suddenly feels hard. When her teacher suggests she get a tutor, McKenna is horrified, until she gets to know her tutor, Josie, who is super smart, and confident, and happens to be in a wheelchair. With Josie's help, McKenna's confidence grows, but she can't bring herself to tell her friends that she's being tutored. When they discover her secret, they're hurt and angry. Then something goes wrong at the gym that sidelines McKenna. Will she find her way back to the sport she loves? And will her friendships ever be the same again?