NCIS: Los Angeles 11x21 "Murder of Crows" Season 11 Episode 21 Promo - NCIS helps a former NCIS tech operator search for her missing ex-partner, when they fear he might be working with the gun runners they failed to take down years ago. Also, Callen reveals to Sam that he's about to put down roots with Anna, and Deeks reels when his bar gets a negative review, on NCIS: LOS ANGELES, Sunday, April 19th on CBS.