Discover which 'wiches make the cut as Unwrapped salutes the sandwich. First, learn why Manwich has been a sloppy joe sensation for over 40 years. Next, Subway has a sandwich to feed a giant appetite, and when it comes to peanut butter sandwiches, Skippy has things covered. Later, Nature's Pride bakes enough bread for a million sandwiches every day, and see why Turkey Hill's ice cream sandwiches are doubly delicious. Then, from Gruyère and Swiss to marshmallows and banana, anything goes at the Grilled Cheese Invitational!