Gossip Girl Season 2 Episode 17: Carnal Knowledge

In retaliation for not playing by the silent rules of Constance Billard, Blair hatches a plan to bring down her teacher, Rachel and it’s going to be superior. After Chuck wakes up in a hotel and only has a small recollection of what happened the previous evening and who he spent the evening with, Nate and Vanessa try to help him fill in the gone pieces of what is turning out to be an increasingly intriguing mystery.