The ordinary interactions and everyday routines of the Watsons, an African American family living in Flint, Michigan, are drastically changed after they go to visit Grandma in Alabama in the summer of 1963.

When his poor sharecropper father is killed in an accident and leaves the family in debt, twelve-year-old Little Charlie agrees to accompany fearsome plantation overseer Cap'n Buck north in pursuit of people who have stolen from him; Cap'n Buck tells Little Charlie that his father's debt will be cleared when the fugitives are captured, which seems like a good deal until Little Charlie comes face-to-face with the people he is chasing.