A young boy who had disappeared a year ago turns up for sale by a child pornographer on an online auction. A former profiler who now heads the FBI's Innocent Images Unit asks Gideon and the BAU to help her save the boy's life.
Emily targets an author with ties to the Graysons and the Clarkes; Conrad shows how dirty he is willing to get in the divorce; Jack lets his guard down with Amanda; a shocking revelation becomes a game changer.
Grissom, Catherine and Sara are called in to investigate when a hockey player dies during a practice. Warrick and Nick look into the apparent drug-related death of a sax player at a casino.
When Addison goes home to Connecticut to deal with a family tragedy, Sam and her friends decide to tag along; Sheldon and Violet fight over a death row patient's confession.
In Part One of a Two-Part crossover episode to conclude on "Without A Trace," a kidnap victim from New York who went missing six years ago may be the same boy whose death Grissom and the CSI team are investigating in Las Vegas. (TV-14)