Presciliana Esparolini

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

Castle and Beckett investigate the murder of an NYC subway worker found shot in Central Park. While investigating the murder they come up to uncover the abduction of a young boy as well.

Detectives Jane and Maura uncover shady activities at a college where a student was shot in broad daylight.

The NCIS team suspects Gibbs' arch-nemesis is behind an explosion, but Gibbs elects to sit out the investigation in order to help a grief-stricken Fornell, whose life is on the verge of imploding following his wife's murder.

Ray forces Mickey to return to LA and brings him to Ed Cochran. Desperate to control Mickey, Ray corrupts a parole officer and has him take over Mickey's case.

The NCIS team's murder investigation of a man who sold military information leads to the abduction of a doctor whose cutting-edge neurotechnology could be developed into advanced weaponry; Callen tries to have an important talk with Arkady.