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The Best Episodes of NCIS Season 4

Every episode of NCIS Season 4 ranked from best to worst. Discover the Best Episodes of NCIS Season 4!

Binge this in 17h 32m·Peaking at 8.6/10
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Episode Rankings

  1. #1 Fan Favorite
    NCIS Season 4 Episode 16 - Dead Man Walking
    8.6/10(1187 votes)

    S4:E16

    When a Navy Lieutenant becomes the victim of radiation poisoning, the NCIS team must find the person who's behind the crime. The Lieutenant, who is working for the International Atomic Energy Agency, claims that only his two colleagues knew about his assignment, and whoever it was, the person tried to stop the Lieutenant's next investigation.

    Director:Colin Bucksey
    Writer:Nell Scovell

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  2. NCIS Season 4 Episode 19 - Grace Period
    8.4/10(1024 votes)

    S4:E19

    When a weekend call to the NCIS tip line from an unknown source about possible terrorist activity results in the death of two agents sent into a trap, the NCIS team will have to find out who were the people responsible with the help from Agent Paula Cassidy, who holds herself responsible for the tragedy.

    Director:James Whitmore Jr.
    Writer:John C. Kelley

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  3. NCIS Season 4 Episode 9 - Twisted Sister
    8.2/10(1047 votes)

    S4:E9

    McGee breaks the rules, risking his NCIS job, to help his sister Sarah, who shows up disoriented and bloodied. While he works on figuring out what happened to his sister, the NCIS team are investigating a case of a Navy sailor, who is somehow connected to Sarah.

    Director:Terrence O'Hara
    Writer:Steven D. Binder

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  4. NCIS Season 4 Episode 24 - Angel of Death
    8.2/10(983 votes)

    S4:E24

    When Jenny returns from her European trip, the entire NCIS team will be forced to take a Homeland Security polygraph test, and the deepest secrets of each agent are about to be revealed. Plus, an unarmed Tony and Jeanne are held hostage by a ruthless drug dealer.

    Director:Dennis Smith
    Writer:Donald P. Bellisario

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  5. NCIS Season 4 Episode 1 - Shalom
    8.1/10(1064 votes)

    S4:E1

    When Ziva is framed for a political assassination, she must avoid the FBI and deal with the consequences without Gibbs' help, who is now enjoying his retirement.

    Director:William Webb
    Writers:Donald P. Bellisario, John C. Kelley

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  6. NCIS Season 4 Episode 6 - Witch Hunt
    8.0/10(984 votes)

    S4:E6

    It's Halloween and the NCIS team are busy investigating a ransom case. A Marine's daughter has been kidnapped after the Marine was attacked in his home. The investigation leads them to a fact that the couple has been separated.

    Director:James Whitmore Jr.
    Writer:Steven Kriozere

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  7. NCIS Season 4 Episode 10 - Smoked
    8.0/10(952 votes)

    S4:E10

    When a burnt and mummified body of a missing and wanted person is found in a furnace on a Marine base, NCIS must work with the FBI. The burnt man turns out to be a serial killer.

    Director:Dennis Smith
    Writers:Robert Palm, John C. Kelley

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  8. NCIS Season 4 Episode 2 - Escaped
    7.9/10(964 votes)

    S4:E2

    Gibbs is forced to come back out of his retirement to help Fornell, who is being threatened by a convict that escaped from prison. Gibbs and the NCIS team re-open the convict's old robbery case.

    Director:Dennis Smith
    Writers:Steven D. Binder, Christopher Silber

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  9. NCIS Season 4 Episode 8 - Once a Hero
    7.9/10(894 votes)

    S4:E8

    When an honored Marine veteran is found dead in a hotel, the NCIS team must find out what happened to him. Soon they realize that the Marine didn't commit suicide and that he was a homeless man.

    Director:Thomas J. Wright
    Writer:Shane Brennan

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  10. NCIS Season 4 Episode 14 - Blowback
    7.9/10(884 votes)

    S4:E14

    After catching an international arms dealer, the NCIS team learn that the Navy's highly classified weapons system will be sold to arms dealer La Grenouille. To stop the transaction, the team send Ducky undercover.

    Director:Thomas J. Wright
    Writer:Christopher Silber

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  11. NCIS Season 4 Episode 20 - Cover Story
    7.9/10(938 votes)

    S4:E20

    McGee is under high pressure during the murder investigation of a Petty Officer based on the character for his latest book, with very little information to go on.

    Director:Dennis Smith
    Writer:David J. North

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  12. NCIS Season 4 Episode 23 - Trojan Horse
    7.9/10(862 votes)

    S4:E23

    When Jenny has to attend an overseas conference, Gibbs is made acting director, but he prefers to ignore his duties and lead the investigation of the murder of a man, who was found dead in a taxi headed to the NCIS headquarters.

    Director:Terrence O'Hara
    Writers:Shane Brennan, David J. North

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  13. NCIS Season 4 Episode 4 - Faking It
    7.7/10(906 votes)

    S4:E4

    After police pull over a driver and arrest him for a concealed weapon, a car crashes into their patrol car with a dead man behind the wheel. The arrested man turns out to be Russian and Homeland Security claim he was working for them.

    Director:Thomas J. Wright
    Writer:Shane Brennan

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  14. NCIS Season 4 Episode 11 - Driven
    7.7/10(958 votes)

    S4:E11

    When a robotic vehicle named "Otto," a part of a high-level project of the Department of Defense, causes a death of a Navy Lieutenant, and later almost kills Abby, the NCIS team must find out who sabotaged the vehicle and murdered the Lieutenant.

    Director:Dennis Smith
    Writers:Richard C. Arthur, John C. Kelley, Nell Scovell

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  15. NCIS Season 4 Episode 12 - Suspicion
    7.7/10(925 votes)

    S4:E12

    When a high-level Marine intelligence officer is found murdered in a small motel room, the NCIS team must find the person who murdered her. After discovering that she was already dead for three days, and that the town authorities already "investigated" the crime, Gibbs is determined to solve the case.

    Director:Colin Bucksey
    Writer:Shane Brennan

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  16. NCIS Season 4 Episode 13 - Sharif Returns
    7.7/10(891 votes)

    S4:E13

    When the NCIS team learn that a missing ten kilograms of highly toxic chemical weapons are now in the hands of Mamoun Sharif, a wanted terrorist, they will have to find a way to find the man and stop him before it's too late.

    Director:Terrence O'Hara
    Writer:Steven D. Binder

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  17. NCIS Season 4 Episode 15 - Friends and Lovers
    7.7/10(900 votes)

    S4:E15

    When a dead body of a sailor is found in an abandoned part of the town, all the evidence seem to point that the person died from a drug overdose, but when the team uncover more evidence, it turns out to be a murder.

    Director:Dennis Smith
    Writer:John C. Kelley

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  18. NCIS Season 4 Episode 17 - Skeletons
    7.7/10(927 votes)

    S4:E17

    When an explosion at a military cemetery mausoleum reveals a crypt full of a mixture of body parts, the NCIS team must inform the families of the victims, hoping to find a connection and narrow down the suspects to find out who is behind the hideous crime.

    Director:James Whitmore Jr.
    Writer:Jesse Stern

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  19. NCIS Season 4 Episode 18 - Iceman
    7.7/10(857 votes)

    S4:E18

    When a supposedly frozen to death Marine turns out alive on Ducky's autopsy table, the NCIS team have to find out about the victim's movements in the last few days to uncover what happened to him and who left him for dead.

    Director:Thomas J. Wright
    Writer:Shane Brennan

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  20. NCIS Season 4 Episode 5 - Dead and Unburied
    7.6/10(909 votes)

    S4:E5

    When a missing Lance Corporal is found dead in a vacant house, the NCIS team discover that he was buried in the backyard and then exhumed. They learn about his identity and that he was to be deployed to Iraq, but he never showed up for duty.

    Director:Colin Bucksey
    Writer:Nell Scovell

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  21. NCIS Season 4 Episode 7 - Sandblast
    7.6/10(921 votes)

    S4:E7

    When a Marine Colonel dies in an explosion at a military golf course, the NCIS team must investigate a suspected terrorist attack with the help from the Army Criminal Investigative Division.

    Director:Dennis Smith
    Writer:Robert Palm

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  22. NCIS Season 4 Episode 3 - Singled Out
    7.5/10(988 votes)

    S4:E3

    An abandoned car, registered to a missing Navy Lieutenant, is found with blood stains inside. The NCIS team learn that the missing Lieutenant was profiling men, trying to find a perfect man for herself.

    Director:Terrence O'Hara
    Writer:David J. North

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  23. NCIS Season 4 Episode 22 - In the Dark
    7.5/10(866 votes)

    S4:E22

    When a blind photographer shoots the body of a Petty Officer on film, the NCIS team use his special insight to investigate the crime.

    Director:Thomas J. Wright
    Writer:Steven D. Binder

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  24. NCIS Season 4 Episode 21 - Brothers in Arms
    7.3/10(862 votes)

    S4:E21

    Director Shepard makes a huge mistake by meeting a man alone to inform her about La Grenouille, as their meeting turns into a murder of the informant. Now the NCIS team must gather all the existing info and try to finally hunt down their enemy.

    Director:Martha Mitchell
    Writer:Steven D. Binder

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Season 4 Ratings Summary

"Dead Man Walking" is the best rated episode of NCIS season 4. It scored 8.6/10 from 1,187 votes. Directed by Colin Bucksey and written by Nell Scovell, it aired on February 20, 2007. This episode is rated 0.2 points higher than the second-best, "Grace Period".