It's 1976 in Anderson, S.C. and Coach Harold Jones (ED HARRIS) is preparing his high school football team for another season with the help of assistant coach Honeycutt (BRENT SEXTON). His wife, Linda (DEBRA WINGER), realizes that means he'll have little time for her or their daughter, Mary Helen (SARAH DREW), who's a junior and cheerleader at the same school.
After every game, the coach shows up the local barbershop where the locals discuss the effort and contemplate the strategy for the next contest. Banker Frank Clay (CHRIS MULKEY), whose son Johnny (RILEY SMITH) is on the team, has a complaint. He isn't pleased that Jones has taken a local boy, James Robert Kennedy (CUBA GOODING JR.), under his wing and seems a bit distracted.
After Johnny and some of the other players abducted and taunted the slightly mentally handicapped teen - nicknamed "Radio" for his interest in such electronics - Jones has allowed him to join the team as an assistant and even attend class.
Since he's not an official student, however, that doesn't sit well with Principal Daniels (ALFRE WOODARD) or the local school board, but Jones feels that they can't ignore Radio. That's particularly true since he has little education and a single mother, Maggie (S. EPATHA MERKERSON), who is always working long hours at the hospital.
As the school year progresses and the football season comes to an end, Jones does what he can to temper the criticism of his efforts to help the young man find a place in their school and community.