Juan Carlos Cantu

Gideon, Hotchner and their team head to Mexico to aid in the investigation of a serial killer who preys on the elderly.

Dexter just can't seem to lose his dark urges. His conflicting lifestyles don't mix, so he looks to hire a nanny to take care of the baby. Things heat up when Quinn notices strange similarities between the Trinity Killer suspect and Dexter. Will Dexter finally be exposed as a cold-blooded killer?

Elliot finds herself perplexed over a simple procedure that leaves her questioning her career path. Meanwhile, Turk asks J.D. to be his best man at his wedding.

Gordon Cole instructs Albert to meet with an old contact. Hawk makes a discovery involving `the missing piece' that will help him find Cooper.

Cooper is still trapped as Dougie, going through the motions, as his Doppelganger schemes in jail. Meanwhile, new information on Major Garland Briggs turns up.

The NCIS team investigates a deadly car explosion in DC that connects to NCIS Special Agent Nicholas Nick Torres who disappeared six months ago.