Plot summary
Fran and Niles fight over who will receive the weekend off. Fran wins, and Niles accuses her of seducing Maxwell to get her way. He allies with C.C. as revenge against Fran. Niles and Fran reconcile, and he suggests that Fran take the Sheffields to the Fine Family Reunion at Niagara Falls, adding that it is the perfect place for Maxwell to propose, and a solution that will give them both the weekend off. Fran doesn't hear Maxwell's proposal over the roar of the waterfall. He slips and falls, with no recollection of what happened.
Credits
Adapted from Wikipedia contributors, The Nanny season 5. HTML formatting and reference markers removed.