Historian/Fast-food Detective Marcia Chatelain is our guide as we explore the cases of American fast food franchises that once were, until they vanished without a trace. The Mid-century was the height of fast-food franchising: McDonalds, KFC, White Castle. But what about the chains that didn’t survive? From pyramid schemes and copycats to acquisitions and fish wars, we explore the culprits in the cases of the disappearing franchise.