NCIS is an American police procedural television series that follows a fictional team of special agents from the Naval Criminal Investigative Service. It blends elements of military drama with the police procedural genre. The show’s concept and characters were first introduced in two episodes of the CBS series JAG (Season 8, Episodes 20 and 21: “Ice Queen” and “Meltdown”). A spin-off of JAG, NCIS premiered on September 23, 2003, on CBS. As of now, it has entered its twentieth season and is also broadcast in syndication on the USA Network. Co-created and executive produced by Donald P. Bellisario and Don McGill, NCIS is notable for being the third-longest-running scripted, non-animated primetime TV series in the U.S., trailing only Law & Order: Special Victims Unit (1999–present) and Law & Order (1990–2010; 2022–present). Overall, it ranks as the seventh-longest-running scripted primetime series in U.S. television history.
