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- Season 4 overviewSep 19, 2006-May 22, 200724 episodesSeason 4 episodes24. Angel of Death May 22, 2007
- Upon the director's return from a European junket, the team's secrets unravel.
- 23. Trojan Horse May 8, 2007
- Gibbs leads the investigation into a murder victim found in a taxi headed to NCIS headquarters.
- 22. In the Dark May 1, 2007
- The team asks a blind photographer to help track down a petty officer's killer.
- 21. Brothers in Arms Apr 24, 2007
- The director's risky solo meeting with an informant ends with a death.
- 20. Cover Story Apr 10, 2007
- A petty officer on whom McGee based a character for his latest book is murdered.
- 19. Grace Period Apr 3, 2007
- The team learns that a tip on terrorist activity was a trap that ended in the deaths of two agents.
- 18. Iceman Mar 20, 2007
- The team tracks a Marine's movements in the days up to his being left for dead.
- 17. Skeletons Feb 27, 2007
- An explosion at a military cemetery's mausoleum reveals a cache of dismembered human remains.
- 16. Dead Man Walking Feb 20, 2007
- The NCIS team suspects foul play when a Navy lieutenant is the victim of radiation poisoning.
- 15. Friends and Lovers Feb 13, 2007
- A young sailor's body is found in an abandoned building in a seedy part of town.
- 14. Blowback Feb 6, 2007
- Ducky goes under cover to stop the illegal sale of the Navy's top-secret weapons system.
- 13. Sharif Returns Jan 23, 2007
- The NCIS team must track down a wanted terrorist who has obtained a chemical weapon.
- 12. Suspicion Jan 16, 2007
- The team battles local biases while investigating the murder of a Marine officer.
- 11. Driven Dec 12, 2006
- A highly classified robotic vehicle causes the death of a Navy lieutenant.
- 10. Smoked Nov 28, 2006
- A burned and mummified body found in a furnace is that of a serial killer.
- 9. Twisted Sister Nov 21, 2006
- McGee takes things into his own hands when his sister arrives on his doorstep bloodied and confused.
- 8. Once a Hero Nov 14, 2006
- Suspicious activity surrounds a decorated Marine veteran's death.
- 7. Sandblast Nov 7, 2006
- A suspected terrorist attack kills a Marine colonel at a military country club.
- 6. Witch Hunt Oct 31, 2006
- A marine is attacked in his home and his daughter is kidnapped on Halloween.
- 5. Dead and Unburied Oct 17, 2006
- The team investigates the death of a missing lance corporal who was buried near a vacant house.
- 4. Faking It Oct 10, 2006
- The team is called to the scene of the murder of a petty officer.
- 3. Singled Out Oct 3, 2006
- The team searches the abandoned and bloody car of a missing lieutenant.
- 2. Escaped Sep 26, 2006
- NCIS temporarily reinstates Gibbs when an escaped convict threatens his friend's life.
- 1. Shalom Sep 19, 2006
- Ziva witnesses a political assassination and the FBI wants her.
The fourth season of the police procedural drama NCIS was originally broadcast between September 19, 2006, and May 22, 2007. Special Agent Leroy Jethro Gibbs left NCIS at the end of season three after a terrorist attack had been successful because his superiors did not heed his warnings in time.
S4.E8 ∙ Once a Hero. Tue, Nov 14, 2006. At a hotel in Washington, a homeless hero Marine veteran falls to his death, and a maid finds the body of a 14-year-old girl. Gibbs and company investigate; Ducky, Abby, and McGee help, Lee goes undercover, and the team find the bad guys. 7.8/10 (771) Rate.
After contacting the serial killer's family, the NCIS and FBI teams search their home for additional remains and make a shocking discovery. Meanwhile, the NCIS team has problems with the "fictional" book McGee wrote about a team of NCIS agents.
Sep 19, 2006 · NCIS: The Fourth Season, the top-rated investigate crime drama continues the thrilling adventures of a cutting-edge crew of special agents who operate outside the government's chain of command.
Naval Criminal Investigative Service Special Agent Leroy Jethro Gibbs leads a group of colorful personalities in investigating crimes -- ranging from murder and espionage to terrorism -- that have...
Series Cast 148. Mark Harmon. Leroy Jethro Gibbs (24 Episodes) Sean Murray. Timothy McGee (24 Episodes) Michael Weatherly. Tony DiNozzo (24 Episodes) Cote de Pablo. Ziva David (24 Episodes)
After a CIA tip leads them to an abandoned warehouse rigged to explode with a cell phone bomb, McGee uses his computer skills to tap into secret government files in order to track down the CIA informant and uncover the terrorist cell.