Highlights from the Seventeenth Episode of Season 5 of NCIS: LA

An undercover ATF agent is killed by the Yakuza and his execution is posted online.

Season 5 Episode 17 Photos - NCISLA

1. Season 5 Episode 17 Photos - NCISLA

Pictured: Linda Hunt (Henrietta "Hetty" Lange). When an undercover agent is identified and executed by a local gang, the NCIS: Los Angeles team must locate the mole before other agents’ lives are put in danger. Meanwhile, Granger begins to worry when Kensi disappears in Afghanistan, on NCIS: LOS ANGELES, Tuesday, March 18 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved.

2. "Between The Lines" S5 E17

Pictured: Eric Christian Olsen (LAPD Liaison Marty Deeks). When an undercover agent is identified and executed by a local gang, the NCIS: Los Angeles team must locate the mole before other agents’ lives are put in danger. Meanwhile, Granger begins to worry when Kensi disappears in Afghanistan, on NCIS: LOS ANGELES, Tuesday, March 18 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved.

3. "Between The Lines" S5 E17

Pictured: LL COOL J (Special Agent Sam Hanna), Linda Hunt (Henrietta "Hetty" Lange) and Eric Christian Olsen (LAPD Liaison Marty Deeks). When an undercover agent is identified and executed by a local gang, the NCIS: Los Angeles team must locate the mole before other agents’ lives are put in danger. Meanwhile, Granger begins to worry when Kensi disappears in Afghanistan, on NCIS: LOS ANGELES, Tuesday, March 18 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved.

4. "Between The Lines" S5 E17

Pictured: Linda Hunt (Henrietta "Hetty" Lange). When an undercover agent is identified and executed by a local gang, the NCIS: Los Angeles team must locate the mole before other agents’ lives are put in danger. Meanwhile, Granger begins to worry when Kensi disappears in Afghanistan, on NCIS: LOS ANGELES, Tuesday, March 18 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved.

5. "Between The Lines" S5 E17

Pictured: LL COOL J (Special Agent Sam Hanna). When an undercover agent is identified and executed by a local gang, the NCIS: Los Angeles team must locate the mole before other agents’ lives are put in danger. Meanwhile, Granger begins to worry when Kensi disappears in Afghanistan, on NCIS: LOS ANGELES, Tuesday, March 18 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved.

6. "Between The Lines" S5 E17

Pictured: Eric Christian Olsen (LAPD Liaison Marty Deeks) and Renée Felice Smith (Intelligence Analyst Nell Jones). When an undercover agent is identified and executed by a local gang, the NCIS: Los Angeles team must locate the mole before other agents’ lives are put in danger. Meanwhile, Granger begins to worry when Kensi disappears in Afghanistan, on NCIS: LOS ANGELES, Tuesday, March 18 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved.

7. "Between The Lines" S5 E17

Pictured: Barrett Foa (Tech Operator Eric Beale), Eric Christian Olsen (LAPD Liaison Marty Deeks), LL COOL J (Special Agent Sam Hanna) and Chris O'Donnell (Special Agent G. Callen). When an undercover agent is identified and executed by a local gang, the NCIS: Los Angeles team must locate the mole before other agents’ lives are put in danger. Meanwhile, Granger begins to worry when Kensi disappears in Afghanistan, on NCIS: LOS ANGELES, Tuesday, March 18 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved.

8. "Between The Lines" S5 E17

Pictured: Eric Christian Olsen (LAPD Liaison Marty Deeks), Chris O'Donnell (Special Agent G. Callen) and LL COOL J (Special Agent Sam Hanna). When an undercover agent is identified and executed by a local gang, the NCIS: Los Angeles team must locate the mole before other agents’ lives are put in danger. Meanwhile, Granger begins to worry when Kensi disappears in Afghanistan, on NCIS: LOS ANGELES, Tuesday, March 18 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Photo: Neil Jacobs/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved.

9. "Between The Lines" S5 E17

Pictured: Eric Christian Olsen (LAPD Liaison Marty Deeks). When an undercover agent is identified and executed by a local gang, the NCIS: Los Angeles team must locate the mole before other agents’ lives are put in danger. Meanwhile, Granger begins to worry when Kensi disappears in Afghanistan, on NCIS: LOS ANGELES, Tuesday, March 18 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Photo: Neil Jacobs/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved.