Pictured: LL COOL J (Special Agent Sam Hanna) and Chris O'Donnell (Special Agent G. Callen). Callen and Sam go undercover as food truck owners in Mexico to find the source of an anthrax poisoning before it's used to create a bioweapon, on NCIS: LOS ANGELES, Monday, Feb. 2 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Photo: Cliff Lipson CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved.