Across the globe, we love our mass-produced food, whether it's chocolate or cheese, pizza or potato waffle. But what exactly goes on behind the scenes at the factories where are our favorite foods are made? Host Gregg Wallace uncovers the hidden world of conveyors, choppers, mixers, and molders, examining-and even pitching in on-the manufacturing process. From the intake area, where the raw ingredients first arrive to the dispatch hold, where packaged products are shipped off to supermarkets, witness the machines that make factories work.