Little rich girl Eloise, who lives at the Plaza Hotel, plots to stop the wedding of the Plaza owner, Mr. Peabody's daughter, while protecting her pet turtle from the sinister Mrs. Thornton.
Determined to spread Christmas cheer throughout the Plaza Hotel, six-year-old Eloise "decorates" the halls, distributes unusual gifts to the staff, and surprises the fifth floor guests with her joyful caroling.