Merry Invasion

"Merry Invasion" is the fourth Christmas episode of the CBS series ''NCIS: Los Angeles, aired in the show's fifth season.

Synopsis
NCIS delves into the reasons behind an attack on a senator's daughter. Deeks partners up with Nell to back up Sam and Callen in their effort to provide security for the daughter. One of Kensi's coworkers gives her the ideal holiday gift.