Finally, Chuck (Ed Westwick) is fighting for Blair (Leighton Meester)! But will it be enough to convince B to cancel her royal wedding? And what about that devestating car crash? Could it really be Chuck and Blair inside — or are some other unlucky Upper East Siders headed for a brush with death? Take a look at this sneak peek video of Gossip Girl Season 5, Episode 10: "Riding in Town Cars With Boys." Original airdate: Monday, December 5, 2011 at 8/7c on the CW.