It's 1936, in Flint, Michigan. Ten-year-old Bud may be a motherless boy on the run, but he's on a mission. His momma never told him who his father was, but she left a clue: posters of Herman E. Calloway and his famous band, the Dusky Devastators of the Depression! Bud's got an idea that those posters will lead to his father. Once he decides to hit the road and find this mystery man, nothing can stop him.