Beamon and Mary Triplett discharge their three-year-old son, Donald, from a Mississippi institution. They appeal to Dr. Leo Kanner, the father of child psychiatry, who is intrigued by the boy’s remarkable memory and singular behavior. After years of studying children with similar attributes, Dr. Kanner makes the diagnosis that changes history.

Bonus: John Donvan and Caren Zucker Discuss Their PBS Documentary
22:23

Christmas in Forest
42:18

Donald on the Move
38:44