The Naval Criminal Investigative Service (NCIS) is the primary law enforcement and counter-intelligence arm of the United States Department of the Navy. The show focuses on the often complex and always amusing dynamics of a team forced to work together in high-stress situations. Distinguished by its comedy elements, ensemble acting, and character-driven plots, cases can range from murder and espionage to terrorism and stolen submarines.

Led by NCIS Special Agent Leroy Jethro Gibbs, a former Marine gunnery sergeant whose investigative skills are unparalleled, the team is comprised of a robust group of characters, all with their own special skill set to bring to the table.