Carrie gets in way over her head when she tries to cook the perfect Thanksgiving dinner for her family, her new boyfriend George and his dad Harlan, so she enlists Mouse's help. Tom is oblivious to the chaos going on in the kitchen, while Dorrit finds a new way to torture Carrie. Maggie is excited to have Thanksgiving with Walt's family, but when the topic of college comes up she realizes that she hasn't put much thought into her future. Elsewhere, Sebastian learns that his mother decided to fly out of town with her boyfriend, leaving him to fend for himself on Thanksgiving.

Carrie is thrilled when the junior-senior lock-in provides the perfect cover for a night out in Manhattan with Larissa and her Interview co-workers - until a surprising encounter turns her night upside down. Maggie and Mouse confront Sebastian about his feelings for Carrie and tell him he better make a grand gesture if he stands any chance of winning her back. Harlan finally convinces Tom to go on a double date, with surprising results. Meanwhile, Maggie tries to find the courage to tell Walt about Simon before Donna LaDonna does.