Chuck, Nate, Blair, Serena and Lola team up to uncover what they think is an explosive secret between Diana and Jack. Meanwhile, Dan is offered a prestigious fellowship in Rome for the summer.
Nate asks for India, Serena tries to call Gossip Girl, the party guests are all asked to leave, Chuck finds Jack, Nate and Lola find Diana/India, and Blair accidentally finds someone she shouldn't.
End of the episode. Serena eats berries while the real Gossip Girl sends out a blast, Blair returns to Dan's loft, and Chuck goes back into the brothel mansion and finds his father alive.