Sara Brown lives with her parents, above their "Toy Hospital" shop. A man brings in a broken toy to sell. That toy is called "Hoppity", who can sing, but has trouble dancing anymore (so he does his "falling over dance") because he only has one leg. Miss Julie (who makes clothes for all the toys) gives Sara the money to buy Hoppity and they all set about cleaning and repairing him. Apart from Sarah, they probably wished they hadn’t.