NCIS: Los Angeles - Season 4 Episode 3 The Fifth Man New city. New team. Same attitude.
Overview: 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.