A baby is stolen from its mother soon after she delivers. The unit traces the baby to a broker who sells children for profit. Once they go through the broker's files, they learn that a baby disappearance that Cragen worked on a decade prior was actually one of the babies sold for profit. When Cragen goes to find the illegally adopted child, he finds the young boy lives in a home where he is dearly loved and extremely happy. Cragen is then put in the unenviable position of having to take the child from the only parents he's ever known to give him to the father who never knew he existed and the maternal grandparents who never gave up hope that he would be found.