Adam is in Philadelphia, on the hunt for a wacky joint with a secret beer-filled burger; the ultimate chili-pie upgrade at a restaurant in an old bank; a hidden Mexican meatball sub; and an off-the-menu glazed, fried chicken at a doughnut shop.

Adam is in Portland, OR, searching for a massive off-menu burger that features almost every animal; a secret mac-and-cheese dish with pastrami; and a legendary grilled-cheese restaurant that has its dining room in a school bus. The Fried Onion/The Moussa Grilled Cheese Grill/The Alyson Kenny & Zuke's Delicatessen/Jeremy