Annie is positive orphan who lives under the close supervision of a strict governess Miss Hannigan with other girls and dreams that one day she find a real family. Once Annie falls under the wheels of the car but William Stacks, businessman who is fighting for the post of mayor in New York City saves her at the last moment. Campaign managers decide that his friendship with a girl from rough part of town can be nice to increase his popularity among ordinary people and help to win elections. Will becomes the temporary guardian of orphan, because he can show everyone that he cares about people. But gradually the relations of the businessman and the girl pass from business into the family one. Will get used to the clever and irrepressible Annie, which makes his boring life brighter. Annie receives all she dreamed about: the big house, many toys and parents who take care of her. But this idyll was soon confronted with the realities of the modern world, because cruel world of politics intervenes in the lives of the characters.