Katie, jealous of Taylor’s friendship with neighbor Viv, reluctantly competes in the Westport Halloween “Zombie Run” after she finds out they’ll both be running. Meanwhile, Greg and Anna-Kat get a little too much in character for the “zombie” part of the run’s obstacle course.

Oliver is secretly taking dancing and manners classes in hopes of getting the girl he likes to go to the Westport Cotillion with him. He asks for his dad’s help in keeping this all secret from Katie, afraid that she’ll interfere, but that’s easier said than done,

Oliver tells his parents that he's so embarrassed by their modest house that he'd rather not have a birthday party at all. Katie decides to teach him a lesson by ambushing him with a surprise party at home with all his wealthy friends.

The Ottos face the prospect of leaving Westport when their house is put up for sale. No one wants to leave except Katie, who seems determined to move on despite some fun memories of her family's time there.

Katie's least favorite holiday is Valentine's Day, but her desire for a low-key approach is overridden by Greg's over-the-top romantic gestures. Meanwhile Oliver has an expensive gift for the girl he's crushing on, and Taylor tries to put one over on her parents in order to attend a Valentine's Day party.