Gossip Girl (2007): Season 5, Episode 10

5 - 10: Riding in Town Cars with Boys

Lily throws Charlie a party to officially introduce her to New York society. Meanwhile, Charlie's ex-boyfriend, Max (guest star Brian J. Smith), returns and throws a wrench into Charlie's future as a Upper East Side princess by revealing her secret. Elsewhere, Dan decides it may be time to tell Blair the truth about his feelings for her.