VIDEO: Sneak Peek - Moms of NCIS: LA Stars Guest on Tonight's Episode, 10/9

On Tuesday night's episode of the CBS drama series NCIS: LOS ANGELES titled 'The Fifth Man,' the NCIS: LA team investigate a compromised intel operation after four people connected to the classified project are killed at a diner explosion. As Deeks and Kensi are on the trail of those involved, they learn that a wayward teenage girl might be related and Kensi can't help but be empathetic to her situation. The real-life mothers of stars Chris O'Donnell, LL Cool J, Daniela Ruah and Eric Christian Olsen will appear in the episode alongside their children. The episode airs tonight, Oct. 9 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Get a sneak peek below!