Nate has some big decisions! Will he cross his moral boundaries and do Diana’s bidding? Meanwhile, Dan is trying hard to figure out who is publishing his book. He tries to stop it and this just thrusts him further into the spotlight. Chuck and Dan are now helping each other. And S and Charlie? They’re back in the Upper East Side! Where does this lead our bride/mother to be, Blair? Watch to find out! Watch Gossip Girl.