In the summer of 1963, nine-year-old spitfire Starla Claudelle runs away from her strict grandmother's Mississippi home. Afraid Mamie will make good on her threat to send her to reform school, Starla starts walking to Nashville to find her momma, who went there when Starla was three. Out in the country, she accepts a ride from a black woman traveling with a white baby. And the trio embarks on a road trip that will change Starla's life forever.