A young boy lives in an orphanage that is completely surrounded by a thick wall. Every day, he wishes he were free. He wishes he had a new life. And then he meets the loblolly boy, who is strange, mysterious and who promises the young boy that he can teach him how to fly - as he himself can, with his green, feathery wings.  In teaching the boy how to fly, however, the loblolly boy has made an Exchange--he switches place with the orphan. Now the young boy is free and the loblolly boy is "real." The young boy rejoices in his freedom until he realizes the price he has paid and soon sets out to make his own Exchange - but at what cost?