VIDEO: 'NCIS' First Look: Abby's Awesome 'LA' Crossover!

by Michael Ausiello, Entertainment Weekly

Crossover stunts have become as ubiquitous as season-ending character deaths. And let’s face it, more times than not they’re probably conceived at a network marketing retreat instead of inside a writers room — which is probably why many of them come off feeling like blatant ratings-boosting promotional gimmicks. But I’m here to tell you that this week’s NCIS/NCIS: LA mash-up is different, and I can give you at least two reasons why. First off, it revolves around the undeniably awesome Pauley Perrette. And second, because it results in the first face-to-face encounter between Abby and Linda Hunt’s Hetty — a memorable run-in you won’t have to wait ’till tomorrow night to watch thanks to the following CBS first look… (Continued with Video)

Forensic scientist Abby Sciuto joins the Los Angeles NCIS team when a murder case resembles the pattern for a serial killer she has been tracking, on NCIS: LOS ANGELES, Tuesday, Nov. 24 (Clip 1:20 CBS.com).