The BAU team is called in to investigate when male victims are found with no way to identify them.
When David Hodges goes missing, the entire CSI team searches for any piece of evidence that can help locate him, clear his name and save the reputation of the entire crime lab.
New discoveries regarding the day's horrific events keep Jack Bauer away from CTU. Meanwhile, Chloe and Audrey team together to assist with field operations and the investigation takes an unexpected turn.