Otis Kalshwonkee isn't okay with his nickname, O.K. He thinks the initials of his name has destined him to a life of mediocrity. His father assures him that a little hard work doing something he likes will help him find his path to greatness, but that's what a Dad is supposed to say. Maybe a fresh start at a new school will help Otis be more than just O.K. The incredibly average Otis Kalshwonkee is a scrappy middle schooler, stuck in the middle of two incredibly talented siblings. His older brother, Stu, is a beast of an athlete, and his younger sister, Ella, is a musical prodigy. Standing in his way of greatness are a group mean girls that are consistently bullying Otis, the pet dog who has a propensity for running away, and most of all, a lack of work ethic by O.K. Maybe, just maybe, there is a chance for the underdog, O.K. His family is moving out to the suburbs, and he's starting seventh grade in a new middle school.