The movie is set in December 1910. Mrs. Santa Claus is trying to convince her husband, Santa Claus, to take a new route, but he is preoccupied with the Christmas rush and won't listen. Disgruntled, she takes the sleigh out herself, but is forced to land in New York City, where she is stranded when one of the reindeer (Cupid) becomes injured. As "Mrs. North", she takes up board with a family of Jewish immigrants who don't celebrate Christmas. She befriends many of the local children and women, and becomes involved with political issues of the period such as child labour and women's suffrage.