Homer loses his driver's license and Marge is forced to drive him around town. She gets increasingly stressed by having to chauffeur everyone, and she grows angrier and aggressive.
Meanwhile, Homer actually starts to enjoy walking - but Marge clips him with the car while he's crossing the street. Homer and Marge go to therapy together, and the family tries to cheer Marge up by paying attention to her needs and not making her tend to them at all.