Vince Grant

David and Keith become comfortable with family life; Ruth finds empowerment; Brenda faces several truths; Nate brings the family together.

Danny and Stella find innovative ways to process a crime scene while Danny is trapped in a panic room with the victim, who was the only person with the security code. As a locksmith works to cut through the titanium doors, the CSIs rush to process the evidence before the victim decays further and Danny's oxygen runs out. Meanwhile, Mac, Dr. Hawkes and Lindsay investigate the murder of an exotic dancer found dead on a klieg light

The CSI team members cannot get a good read on the new guy (Liev Schreiber) when he joins them in tracking a recently active serial killer who has been killing since the 1970s.

When a body is uncovered during a beach volleyball tournament, the evidence leads Horatio to his nemesis, Walter Resden, who is now targeting one of his past victims. Horatio must deduce why Resden has returned and find a way to stop him for good. Meanwhile, Delko and Natalia's relationship takes an unexpected turn when she thinks that she may be pregnant.