When 11-year-old Jason Ross is cut from his little league team his undefeatable spirit leads him to try and create an expansion team. In searching for a new coach, Jason comes to believe that Mack Henry (Ossie Davis) is really Buck McHenry, the legendary pitcher from the old Negro Baseball Leagues. While Mack begins to coach this rag-tag team, Jason and his friends set out to prove his true identity.