Anonymous blogger Gossip Girl spreads news that "it girl" Serena has returned to Manhattan after a self-imposed exile; Serena's best friend has conflicting feelings about the return.

Serena receives an icy-cold reception from Blair; Serena decides to take Dan to archenemy Chuck's fundraiser brunch; Jenny seeks advice from Blair, who realises she may have something to gain by letting Jenny into her inner circle.

As students prepare for a much-anticipated visit from Ivy League representatives, Blair uncovers a scandalous secret about Serena; Dan has his heart set on the coveted usher position for the Dartmouth representative; Jenny bonds with Serena's brother.

Blair's mother chooses her to be the new face of her clothing line; Serena and Dan remember that they come from very different worlds; Nate and Chuck indulge in a boys' weekend to blow off steam after Ivy Week.

Serena and Dan go on their first date; Lily discovers that Eric is missing from the treatment centre.

Dan's childhood friend returns home and declares her feelings for him; at the masquerade ball, Blair sends Nate on a scavenger hunt; disguised Jenny and Dan sneak into the ball; Lily asks Rufus to accompany her to an Eleanor Waldorf event.