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The Best Episodes of NCIS Season 18

Every episode of NCIS Season 18 ranked from best to worst. Discover the Best Episodes of NCIS Season 18!

Binge this in 12h 0m•Peaking at 8.6/10

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.

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Episode Rankings

  1. #1 Fan Favorite
    NCIS Season 18 Episode 2 - Everything Starts Somewhere
    8.6/10(710 votes)

    S18:E2

    Flashbacks reveal the murder case that first introduced young Gibbs to NCIS and his introduction to young, new-to-America Ducky.

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

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  2. NCIS Season 18 Episode 5 - Head of the Snake
    8.6/10(595 votes)

    S18:E5

    Gibbs and Fornell's crusade to find the head of the drug ring responsible for Fornell's daughter Emily's overdose comes to a climax.

    Director:Tawnia McKiernan
    Writers:David J. North, Brendan Fehily

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  3. NCIS Season 18 Episode 16 - Rule 91
    8.3/10(672 votes)

    S18:E16

    While pursuing a dangerous arms dealer, the team is shocked when Bishop is implicated in an old NSA leak while Gibbs and Marcie realize the killer they've been tracking may be onto them.

    Director:Diana Valentine
    Writers:David J. North, Brendan Fehily

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  4. NCIS Season 18 Episode 7 - The First Day
    8.1/10(701 votes)

    S18:E7

    NCIS investigates the murder of a Navy officer who was killed while driving home a recently released inmate.

    Director:James Whitmore Jr.
    Writer:Margaret Rose Lester

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  5. NCIS Season 18 Episode 14 - Unseen Improvements
    8.1/10(540 votes)

    S18:E14

    NCIS tracks a stolen laptop to the uncle of a young boy, Phineas, Gibbs’ former neighbor.

    Director:Diana Valentine
    Writers:Steven D. Binder, Scott Williams

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  6. NCIS Season 18 Episode 4 - Sunburn
    7.9/10(568 votes)

    S18:E4

    McGee and his wife Delilah's Bahamian vacation turns into a high-stakes mission when a case NCIS is tracking of a dead escape room manager has ties to the island.

    Director:Rocky Carroll
    Writer:Marco Schnabel

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  7. NCIS Season 18 Episode 6 - 1mm
    7.9/10(601 votes)

    S18:E6

    Following a tip about smuggled weapons, Bishop and Torres engage in a shootout in a former sheriff's residence that's now a historical site, only to find themselves locked in abandoned jail cells there.

    Director:Diana Valentine
    Writer:Gina Lucita Monreal

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  8. NCIS Season 18 Episode 15 - Blown Away
    7.9/10(545 votes)

    S18:E15

    When members of an NCIS Regional Enforcement Action Capabilities Training Team (REACT) are killed during an explosion, NCIS Special Agent Jessica Knight, the lone surviving member, helps crack the case using high tech body armor.

    Director:Michael Zinberg
    Writers:Christopher J. Waild, Marco Schnabel

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  9. NCIS Season 18 Episode 9 - Winter Chill
    7.8/10(614 votes)

    S18:E9

    NCIS dives into the competitive world of food trucks after finding a man frozen to death in the back of one.

    Director:Michael Zinberg
    Writer:Scott Williams

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  10. NCIS Season 18 Episode 12 - Sangre
    7.8/10(552 votes)

    S18:E12

    Evidence from the stabbing of a Marine Sergeant leads Torres to meet his father who left when he was a child.

    Director:James Whitmore Jr.
    Writer:Marco Schnabel

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  11. NCIS Season 18 Episode 3 - Blood And Treasure
    7.7/10(558 votes)

    S18:E3

    The discovery of two dead bodies leads the NCIS team into the wild world of modern-day treasure hunting.

    Director:Diana Valentine
    Writer:Christopher J. Waild

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  12. NCIS Season 18 Episode 13 - Misconduct
    7.6/10(500 votes)

    S18:E13

    The team investigates a cyclist killed in a hit and run. Gibbs prepares to testify against a financial advisor who stole millions from his Navy clients.

    Director:Tawnia McKiernan
    Writers:David J. North, Brendan Fehily, Margaret Rose Lester

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  13. NCIS Season 18 Episode 8 - True Believer
    7.4/10(579 votes)

    S18:E8

    When Sloane’s name is discovered in Afghanistan at the site of an abandoned bus with a dead driver, Gibbs accompanies her on a trip to find a group of girls who were kidnapped from the bus.

    Director:Terrence O'Hara
    Writer:Jill Weinberger

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  14. NCIS Season 18 Episode 10 - Watchdog
    7.4/10(671 votes)

    S18:E10

    NCIS uncovers a secret dogfighting ring, which leads to an unexpected move by one of the team members.

    Director:Diana Valentine
    Writers:David J. North, Brendan Fehily

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  15. NCIS Season 18 Episode 1 - Sturgeon Season
    7.2/10(660 votes)

    S18:E1

    Gibbs and Fornell attempt to track down the leader of a drug ring who supplied drugs to Fornell's daughter.

    Director:Michael Zinberg
    Writer:Scott Williams

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  16. NCIS Season 18 Episode 11 - Gut Punch
    6.8/10(618 votes)

    S18:E11

    Vance assigns McGee, Torres, and Bishop to Covid compliance duty at a foreign affairs summit, where they discover a link to another NCIS team's murder case.

    Director:Rocky Carroll
    Writer:Christopher J. Waild

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Season 18 Ratings Summary

"Everything Starts Somewhere" is the best rated episode of "NCIS" season 18. It scored 8.6/10 based on 710 votes. Directed by Terrence O'Hara and written by Steven D. Binder, it aired on 11/24/2020. This episode is rated 0.0 points higher than the second-best, "Head of the Snake".