Adam Richman goes to Los Angeles to find a spicy, off-menu burger at his favorite Thai joint. Then, he discovers an inside-out grilled cheese, a secret Mexican breakfast dish named after Godzilla, and a burrito that combines flavors from Peru, Korea and Mexico.

Adam Richman hunts down sly restaurants in Chicago. He discovers a “monster” mash-up sandwich that holds the entire menu in a roll, a true New Orleans po'boy at a hot dog joint, and Chicago's “king of gnocchi” in a hidden eatery located in a residential home.

Adam is in Las Vegas, where he explores a Chicago Mob-inspired speakeasy and its secret dish, which uses Al Capone's original marinara sauce; 2 crazy mash-up sandwiches; and a New York-style pizza joint hidden inside the Cosmopolitan casino.

Adam's hunt for secret dishes leads him to the City by the Bay, where he tries an off-menu Hawaiian/Korean mash-up, a decadent burger/pate hangover cure, and Eggs McMahon, some down-home soul food served from a hidden curbside window.

Adam is in Oahu, HI, to find the best short ribs he's ever had, modestly served in a bowling alley; a New York/Hawaiian fusion pizza in an Irish pub in Chinatown; and a classic Hawaiian dish so off the menu that it was once deemed illegal.

Adam is in New Orleans, where he reveals secret menu items, including a garlic knot/nachos hybrid that's "knot" on the menu of a New York pizzeria operated out of a renovated warehouse; a barbecue surf-and-turf po'boy; and redfish on the half shell.

Adam's in Nashville, TN, for off-menu deep-fried grilled cheese; a sweet ice cream soda science experiment that you can order only with a secret tweet; a hidden 3-cheese chili hot dog; and a sweet and spicy chicken-and-waffles creation.