Late morning. It is a cold Monday, February 25, 1957, in Philadelphia, Pennsylvania. The battered body of a young boy is found nude in a J.C. Penny Bassinet box. Was it murder? Or a terrible accident? Forever known as the Boy in the Box Case, many seasoned investigators have tried and failed to determine exactly what happened to this child now known as "America's Unknown Child." This case caught the attention of a nation fifty years ago. Find out why it still does today.