The Constance Billard and St. Jude seniors have the production of The Age of Innocence. Serena has a crush on the plays director, Julian, and enlists Vanessas knowledge of theater to help her get the guys attention. Blair receives bad news about her future that leads her on a witch hunt for the person responsible. Dan and Rachel agree to stay away from each other in the aftermath of being discovered as more than teacher and student, but find it impossible to keep that promise. Chuck find help on an unlikely friend, Carter Baizen.