Ever notice how some of the best food can be found on four wheels? In this one-hour special, Guy's pulling up to some of the tastiest food trucks on DDD. From burgers in Key West, Fla., to chilaquiles in California, tacos in Hawaii to fresh catches in Canada, these mobile kitchens are running the gamut of grub-on-the-go. So get in line for some out-of-bounds alfresco favorites.