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NCIS 2003

“Back in force.”

★ 7.6/10 · 2,532 votes TV-14 CrimeDramaAction & Adventure 23 seasons · 507 eps Returning Series
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Quick answer

What is NCIS?

NCIS is an American military police procedural television series that serves as the first installment within the NCIS media franchise. Created by Donald P.

Type
TV series
Year
2003
Status
Returning Series
Episodes
507
First aired
Sep 23, 2003
Last aired
May 12, 2026
Original language
EN
Origin
US
Networks
CBS
Genres
Crime, Drama, Action & Adventure
Updated
Availability by region

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How long to binge?

Estimate the schedule using 507 episodes and an average 45-minute runtime.

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Overview

NCIS is an American military police procedural television series that serves as the first installment within the NCIS media franchise. Created by Donald P. Bellisario and Don McGill, the program features a fictional team of special agents from the Naval Criminal Investigative Service. Under the guidance of showrunner Steven D. Binder, the series follows these agents as they investigate various criminal cases. The scope of their work is broad, ranging from murder and espionage to terrorism and stolen submarines. The team investigates any crime that has a connection to Navy and Marine Corps personnel, regardless of the rank or position of those involved. The main cast includes actors Mark Harmon, Sean Murray, David McCallum, and Brian Dietzen. The production, which premiered in 2003, remains a long-running series focused on the operations of these investigators as they handle matters involving military personnel. The show maintains a focus on the procedural elements of these investigations while exploring the professional dynamics within the Naval Criminal Investigative Service unit.

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Should you watch it?

“Special agents investigate crimes involving Navy and Marine Corps personnel in this long-running military police procedural.”

Reasons to watch
  • fast-paced investigations
  • ensemble cast dynamics
Keep in mind
  • episodic structure may feel repetitive
  • long series commitment

Watch it if you enjoy military-themed crime dramas that balance serious investigations with moments of humor.

This series features depictions of criminal investigations involving murder and terrorism.

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Cast

Episode guide

Season 1 · 23 episodes Open the complete Season 1 guide →
Season 2 · 23 episodes
Season 3 · 24 episodes
Season 4 · 24 episodes
Season 5 · 19 episodes

Frequently asked questions

What is NCIS?

NCIS stands for the Naval Criminal Investigative Service, a civilian-run agency that investigates crimes connected to Navy and Marine Corps personnel.

Who created the show?

The series was created by Donald P. Bellisario and Don McGill.

When did the series premiere?

The series premiered on September 23, 2003.

What kind of cases do they investigate?

The team investigates a wide range of crimes including murder, espionage, terrorism, and stolen submarines.

Is it part of a franchise?

Yes, it is the first installment within the NCIS media franchise.