Gossip Girl

The privileged prep school teens on Manhattan's Upper East Side learn that Serena van der Woodsen is back.

In the wake of the scandalous Kiss on the Lips party, Serena receives an ice-cold reception from her best friend, Blair.

Blair uncovers scandalous information about Serena that may not remain a secret much longer.

Blair is thrilled when her mother chooses her to be the new face of her clothing line.

Dan makes elaborate plans to impress Serena on their first official date.

Dan is torn between two girls when his childhood friend Vanessa returns home and declares her feelings for him.

Serena and Dan finally acknowledge that they are crazy about each other, despite their polar-opposite worlds.

Blair puts on a happy face for her 17th birthday party and attempts to hide the truth from her friends.

When Dan finds out that Serena and her family are celebrating Thanksgiving alone, he naïvely invites them to spend the holiday with his family.

Serena has absolutely no intention of attending the upcoming Debutante Ball, until her grandmother, CeCe, announces that Serena must attend.

When Blair's father comes home for the holidays with an unexpected guest - his boyfriend - Blair finds it difficult to hide her disappointment.

The gang breaks into the school swimming pool for an impromptu night of fun.

Gossip Girl takes pleasure in reporting that Serena van der Woodsen has been spotted buying a pregnancy test, and word spreads like wildfire.

Blair returns to school after losing Queen Bee status; Serena's not fond of living with her future stepbrother, Chuck; and Jenny does something illegal in her quest for popularity.

Serena's world is turned around when her former partner in crime, Georgina Sparks (MICHELLE TRACHTENBERG - "Buffy the Vampire Slayer"), returns to Manhattan to stir up trouble.

Blair and Jenny escalate their "popularity war" by spreading scandalous rumors about each other through Gossip Girl. One of the Upper East Side teens reveals that he's gay.

Georgina (recurring guest star MICHELLE TRACHTENBERG) reveals the true reason that Serena fled Manhattan for boarding school, and Serena quickly falls back into her old habits.

With Serena's reputation on the line, Blair takes matters into her own hands to deal with manipulative Georgina (recurring guest star MICHELLE TRACHTENBERG). Lily thinks of Rufus.