Ep 9. I know What You Did Last Summit

In episode 9 of season 2 of Gossip Girl, titled "I Know What You Did Last Summit," the drama in the Upper East Side continues to spiral out of control. Serena and Dan's relationship takes a turn for the worse, as Serena is still dealing with the aftermath of her father's scandalous return to the city. Dan, on the other hand, is feeling increasingly left out of Serena's life, as she becomes more and more absorbed by the world of high society.

Meanwhile, Blair and Chuck continue to play their dangerous game of seduction, with both of them determined to come out on top. As they attend a summit for the powerful and privileged elite, Blair finds herself drawn to a new and mysterious figure, while Chuck attempts to manipulate his way into a position of power.

Elsewhere, Nate and Jenny's friendship starts to become something more, but Nate is hesitant to pursue anything further, knowing that Jenny is still dealing with the aftermath of her father's imprisonment.

As the tension between the characters continues to build, secrets come to light and unexpected alliances are formed. "I Know What You Did Last Summit" sets the stage for some major revelations and conflicts that will continue to play out over the rest of the season.