The Nanny - Season 3 - Eps 15: Where's Fran?
When Fran catches Maggie smoking, she herself pretends to smoke so that Mr. Sheffield can teach her a lesson in front of Maggie. But Mr. Sheffield overreacts so Fran leaves their home. Mr. Sheffield remembers all the great times together (seen as flashbacks), but eventually realizes what she was trying to do and wants her back.
About The Nanny

Title: The Nanny
First Air Date: 1993-11-03
Last Air Date: 1999-06-23
Status: Ended
Rating: 8.072/10 (from 1186 votes)
Language: EN
Seasons: 7
Total Episodes: 145
Network: CBS
Genres: Comedy, Family
Production Companies: TriStar Television, Sternin & Fraser Ink, Highschool Sweethearts, Columbia TriStar Television
Synopsis
Fran, fresh out of her job as a bridal consultant in her boyfriend’s shop, first appears on the doorstep of Broadway producer Maxwell Sheffield peddling cosmetics, and quickly stumbled upon the opportunity to become The Nanny for his three children. But soon Fran, with her offbeat nurturing and no-nonsense honesty, touches Maxwell as well as the kids.
Cast

Fran Drescher
Fran Fine

Charles Shaughnessy
Maxwell Sheffield

Daniel Davis
Niles

Lauren Lane
C.C. Babcock

Nicholle Tom
Margaret Sheffield

Benjamin Salisbury
Brighton Sheffield

Madeline Zima
Grace Sheffield