14. The Blair Bitch Project -

This episode focuses on the "popularity war" between a recently dethroned Blair Waldorf and the social-climbing Jenny Humphrey.

Blair returns to school after losing her "Queen Bee" status, only to be mocked by her former clique. Meanwhile, Jenny steals a designer Valentino dress to fit in with the wealthy crowd, leading to a showdown at her 15th birthday party. 14. The Blair Bitch Project