Guy Fieri's son Hunter puts Guy's culinary knowledge to the test by challenging him to cook along with a GGG episode jam-packed with food trivia. In each round, Guy earns advantages to help him overcome the cooking obstacles. GGG judges Troy and Claire Johnson drop in to push Guy's expertise to the limit.

When Guy Fieri rolls out across the country visiting diners, drive-ins and dives, he enjoys flavors from around the world. Now he's bringing those flavors back home by inviting four DDD chefs to cook their off-the-charts world cuisine in Flavortown Market. First, they must meld a classic diner dish with their own global flavors to create an international diner favorite. Then, the chefs pick a Wild Card to determine the wild ingredient in a meal that celebrates their culinary heritage, and one chef gets to celebrate a win worth up to $20,000!