Irrepressible Eloise continues to confound the staff of the Plaza Hotel with her imaginative and disaster-producing adventures. Nanny informs the mischievous child that she must take a bath as Mr. Salomone is taking a much-needed break and coming for tea. The resulting elaborate pre-tub rituals and an endless soak full of pirates, motorboats, water skis, etc., create major plumbing problems that saturate the hotel and flood the ballroom. However, when Eloise is hauled off by the manager to confront the mess she has made, what do they discover but a highly authentic Venetian celebration complete with floating gondolas and wet but enthusiastic revelers.