Guy Fieri hits nothing but diners on this trip. In Santa Cruz, Calif., where east coast diner meets Vietnamese cooking for everything from Reubens to spring rolls; In Peabody, Mass., an old lunch car turned diner where the locals pile in for home made favorites like Boston Baked Beans; And in Norman, Okla., a beloved local landmark serving award winning chili on everything from fries to burgers and hot dogs.