Connie and Bill Fisher are on a mission to spread their love of grilled cheese sandwiches throughout the world. They own The Pop Shop in Collingswood, New Jersey, and they have 31 grilled cheese sandwich varieties on their menu. They think they've been asked to star in a show called "All Grown Up," highlighting their amazing gourmet takes on this Kids' Menu favorite. The surprise is that Bobby Flay is going to turn their show into something completely different - the Ultimate Grilled Cheese Throwdown! Watch to see who will be named The Big Cheese in this challenge.