Edmund Gwenn plays Kris Kringle, a bearded old gent who is the living image of Santa Claus. Serving as a last-minute replacement for the drunken Santa who was to have led Macy's Thanksgiving Parade, Kringle is offered a job as a Macy's toy-department Santa. Supervisor Maureen O'Hara soon begins having second thoughts about hiring Kris: it's bad enough that he is laboring under the delusion that he's the genuine Saint Nick; but when he begins advising customers to shop elsewhere for toys that they can't find at Macy's, he's gone too far! Amazingly, Mr. Macy (Harry Antrim) considers Kris' shopping tips to be an excellent customer-service "gimmick," and insists that the old fellow keep his job. A resident of a Long Island retirement home, Kris agrees to take a room with lawyer John Payne during the Christmas season. It happens that Payne is sweet on O'Hara, and Kris subliminally hopes he can bring the two together. Kris is also desirous of winning over the divorced O'Hara's little daughter Natalie Wood, who in her few years on earth has lost a lot of the Christmas spirit.