Overview: Convincing high-brow clients of pub grub's merits is tonight's seemingly impossible challenge for the chefs as they try to show that flair and flavor can be found in other than haute cuisine. Competing chefs, Graham Elliot Bowles, Jonathan Waxman, Ludo Lefebvre, Mark Peel, Rick Moonen and Wylie Dufresne are tasked to reimagine old-school pub grub.