Carrie Bradshaw has to decide between the amazing life she could be leading in Manhattan, New York, and her childhood.
Carrie had to lie to her father and cancel plans with her sister, Doritt, because she is longing for a little privacy with Sebastian. Larissa wants to use Carrie's purse for a picture shoot.
Carrie discovers some concerning details regarding Sebastian's past while prying into Tom's work papers. Carrie, Mouse, and Seth are taken to a performance art club by Larissa.
Carrie asks Walt to accompany her to a Halloween party in the city after Larissa sends an invitation to her. The evening quickly turns into chaos.
Mouse worries about having poor sex skills, but she is thrilled to be reunited with Seth. A dinner invitation is thwarted by Carrie's affections for Sebastian.
When she tries to prepare Thanksgiving dinner for her family, her new boyfriend, and his father, Carrie gets into trouble and has to ask Mouse for help. Maggie can't wait to spend Thanksgiving with Walt's relatives.
Carrie invites George to the school dance, but he misinterprets her intentions. Donna blackmails Maggie after discovering that she is unfaithful to Walt.
Harlan persuades Tom to go on a double date, and Carrie is overjoyed when a school lock-in serves as a perfect excuse for spending the evening out in Manhattan with Larissa and her Interview coworkers.
Carrie snaps at Sebastian, the only person who could help her in finding her sister, when Dorrit disappears while she is watching her.
Carrie, on her seventeenth birthday, is caught between spending time with her friends and Sebastian and having the opportunity to socialize with New York's elite. Dorrit finds himself in a difficult circumstance.
Larissa's pranks catch up with Carrie, and she receives more than she expected. Walt has to confront the emotions he is attempting to hide. Maggie and Sebastian decide to keep something secret.
The situation gets worse by Carrie's desire for the ideal evening with Sebastian. Dorrit asks Donna LaDonna for guidance over her developing romantic life.
Carrie is excited to attend her junior prom, but things start to go wrong as secrets are exposed. Larissa presents a tempting offer to Carrie and Walt.