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