A portrait of Arthur "Peg Leg Sam" Jackson --black harmonica player, singer, and comedian who made his living "busking" on the street and performing in patent-medicine shows touring southern towns. Footage includes excerpts from one of his last medicine shows, videotaped at a county fair in 1972, and material filmed near his home in South Carolina in 1975. The performance includes harmonica solos, songs, a parody of a chanted sermon, folktales and reminiscences, and three buck dances.