It's a week before Christmas and Mrs. Claus (Angela Lansbury) is feeling unappreciated when Santa Claus (Charles Durning) refuses to look over her new route for distributing presents. She goes for a test drive on the sleigh, but lands in New York City due to horrid weather, injuring her reindeer. While she is incognito as "Mrs. North," she befriends neighborhood inhabitants and helps them resolve some of their own issues, which run the gamut from worker abuse to unrequited love.