On a typical summer day in Hollywood, Florida, a mother and her six-year-old son stop at a neighborhood mall. It's 1981. He wants to stop and play an Atari game on display in a Sears store, she goes down another aisle to look at lamps. When she returns minutes later, her son is gone. It's only the beginning of a nightmare for parents John and Revé Walsh, one that would drag on for 27 years.