A cheeseburger and a side of fries--last year, Americans ate over 7 billion of them. And there's an amazing story behind every one. Any idea how they get the sesame seeds to stick to the bun? What does it take to stuff 20 tomatoes inside a ketchup bottle? And what's the secret to getting the dill in dill pickle chips? Host Bobby Bognar sets off on a quest to find out, as he travels the country to unearth the hidden mysteries inside our cheeseburger and fries. It's the science behind perfectly melting cheese, the production of jet-black seeds that sprout into Spanish onions, and a French Fry factory where every day mountains of potatoes are sliced and diced in to 36 million French fries.