Greg blames Katie for setting a bad example when Taylor quits her school activities.

When Katie starts her day in a bad mood, the Ottos come together to cheer her up; but in an alternate reality and in a different sweater, Katie starts her day in a good mood and the family comes together to cheer up Greg.

When things start to fall apart at the last minute, Katie figures out a new way to make the spring gala a success. Meanwhile, Greg attempts to be a "fun dad" and winds up adopting a dog while Katie is occupied with the gala.

After the previous “fattest housewife” in Westport gets plastic surgery to lose weight, Chloe Brown Mueller rubs it in Katie’s face that Katie has now assumed that title. In order to get revenge on Chloe, Katie goes through great lengths to dig up bad photos of Chloe from high school.

When Katie gets sick, Greg enlists Kathryn's help in taking care of the kids, but Kathryn leaves the kids to fend for themselves while she entertains an old high school boyfriend. Meanwhile, Taylor gets a taste of her own medicine when she tries to help an unruly Katie.