
About this season
From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and Marine Corps personnel, regardless of rank or position.
Episodes (24)

1. Truth or Consequences
8.5Aired 22 September 2009 • 44 min
As the hunt for Ziva's replacement begins, Gibbs and his remaining team members must head back to work with the past still weighing heavily on their minds.

2. Reunion
8.1Aired 29 September 2009 • 44 min
The team discovers the bizarre death of a Marine and his two friends may be linked to their past, but it's Gibbs who ends up taking a trip down memory lane.

3. The Inside Man
7.5Aired 6 October 2009 • 44 min
The team must take a second look into the death of a Lieutenant after the blogger who accused them of a cover-up ends up dead.

4. Good Cop, Bad Cop
8.1Aired 13 October 2009 • 44 min
When a Marine's body surfaces halfway around the world, the investigation forces Ziva to dig up a buried chapter of her life.

5. Code of Conduct
6.1Aired 20 October 2009 • 42 min
When a Marine known for his practical jokes is found dead on Halloween Eve, the NCIS team discovers that the victim's "good-natured" pranks may have inspired ghoulish retribution.

6. Outlaws and In-Laws
7.5Aired 3 November 2009 • 44 min
A murder investigation prompts Gibbs and the team to play family counselor to his former mentor, Mike Franks, in the hopes of preventing a bloody international conflict.

7. Endgame
7.8Aired 10 November 2009 • 44 min
With the team's help, Vance faces his demons while uncovering a complex relationship with a killer that puts his whole family in danger.

8. Power Down
8.1Aired 17 November 2009 • 43 min
The team literally finds themselves in the dark when the investigation into the death of a Lieutenant is connected to a city-wide blackout.

9. Child's Play
8.2Aired 24 November 2009 • 44 min
A dead Marine's day job at a government think tank leads Gibbs and the team into the life of a 12-year-old prodigy who may be the killer's next target.

10. Faith
6.7Aired 15 December 2009 • 44 min
The body of the son of a retired Colonel-turned-preacher is found and the team have their suspicions that he may be the victim of a hate crime.

11. Ignition
7.6Aired 5 January 2010 • 44 min
When a Navy pilot is found dead under strange circumstances in a secluded area, the team finds themselves battling a no-nonsense attorney with a hidden agenda.

12. Flesh and Blood
7.5Aired 12 January 2010 • 44 min
Gibbs is worried about Tony's ability to handle his job when Tony's father turns out to be linked to their newest investigation, an assassination attempt on a foreign prince.

13. Jet Lag
7.6Aired 26 January 2010 • 43 min
While on the flight back from Paris, Tony and Ziva realize that their assignment to protect a government witness in an embezzlement case is in great danger when they learn that an assassin is located on the same flight.

14. Masquerade
7.2Aired 2 February 2010 • 44 min
The team finds themselves in a race against time when a terrorist group threatens to detonate a "dirty bomb" in the D.C. area.

15. Jack-Knife
8.1Aired 9 February 2010 • 43 min
When a Marine is found dead, Gibbs, Fornell, and the team hit the open road to bust an illegal trucking operation.

16. Mother's Day
7.5Aired 2 March 2010 • 43 min
Secrets arise when Gibbs' former mother-in-law surfaces as a witness in a murder investigation.

17. Double Identity
7.2Aired 9 March 2010 • 43 min
Gibbs and the team investigate the shooting of a Marine and uncovers more to his life than anyone would have ever imagined.

18. Jurisdiction
6.7Aired 16 March 2010 • 43 min
The team discovers striking similarities between themselves and their CGIS (Coast Guard Investigative Services) counterparts when a Navy diver seeking sunken treasure is found dead.

19. Guilty Pleasure
7.2Aired 6 April 2010 • 43 min
The death of a Navy officer leads Gibbs and the team into the world of high-priced call girls, relying on D.C. Madam Holly Snow to help them catch a killer.

20. Moonlighting
7.6Aired 27 April 2010 • 44 min
When an NCIS polygraph specialist's night job takes a dangerous turn, Gibbs, Fornell, and the team have to uncover the truth.

21. Obsession
7.2Aired 4 May 2010 • 44 min
DiNozzo finds himself increasingly captivated by a woman he's never met while investigating the murder of her brother.

22. Borderland
7.1Aired 11 May 2010 • 44 min
The team tries to track down a serial killer, while Abby heads south of the border to give a speech with McGee in tow.

23. Patriot Down
7.5Aired 18 May 2010 • 43 min
When a colleague's murder sends shockwaves through the team, Gibbs uncovers a surprising link to the crime.

24. Rule Fifty-One
7.5Aired 25 May 2010 • 44 min
Gibbs heads to Mexico to face his demons and make a startling decision.