NCIS

NCIS is an American police procedural drama created by Donald P. Bellisario and Don McGill, which premiered on CBS on September 23, 2003. The series follows a fictional team of special agents from the Naval Criminal Investigative Service who investigate crimes involving the U.S. Navy and Marine Corps. The concept and characters were first introduced in two eighth-season episodes of JAG, making NCIS a spin-off of that series.

The team was led for many years by Special Agent Leroy Jethro Gibbs, played by Mark Harmon. After modest ratings in its early seasons, the show was voted America's favorite television show in a 2011 Harris Poll and ended its tenth season as the most-watched series in the United States. Its success spawned six spin-offs, including NCIS: Los Angeles, NCIS: New Orleans, NCIS: Hawaiʻi, NCIS: Sydney, NCIS: Origins and NCIS: Tony & Ziva.