Blair (Leighton Meester) must decide whether to meet Chuck (Ed Westwick) at the top of the Empire State Building or risk losing their future together. A Gossip Girl gossip bomb involving Dan (Penn Badgley) explodes Serena (Blake Lively) and Nate's (Chace Crawford) relationship. Dorota (Zuzanna Szadkowski) and Vanya (guest star Aaron Schwartz) welcome their baby. Jenny (Taylor Momsen) hits rock bottom. Georgina (guest star Michelle Trachtenberg) returns to the Upper East Side...and she has an agenda.