Beth is engaged to a wonderful man named Nick. The only problem is that he assumed the mantle of Santa Claus on December 26th of the previous year when his father retired. Now she must marry him on Christmas Eve and assume the duties of Mrs. Claus. Overwhelmed, she asks her mother to help; but she knows nothing of her fiance, his family, or their secret. Disregarding their wishes she plans a much bigger wedding than they wish for. As things become more and more frantic, a distraught Beth finally tells Nick she can't marry him, because she can't be Mrs. Claus and make Christmas right for the whole world; she can't even get it right for her son, Jake.