NCIS (Naval Criminal Investigative Service) is a media franchise of American television programs originally created by Donald P. Bellisario. The main NCIS series is the longest-running show of the franchise, which premiered its twenty-second season on October 14, 2024. Six television series make up the NCIS franchise: NCIS, Los Angeles, New Orleans, Hawai?i, Sydney, and Origins. All series in total amount to 1,042 episodes across 49 seasons of television.