Things are cookin' all kinds of ways in Flavortown. First, Guy Fieri checks in on a diner in San Diego where law enforcement hones their skills and stuffs their gills. Then, a French-trained-chef-turned-barbecue-expert teaches Guy a thing or two about smoking sausage in Mission, Kan. And finally, in Phoenix, a Triple D legend serves up a Mexican-Asian mashup that has never been matched.