When does NCIS return?

Five television series make up the NCIS franchise: NCIS, Los Angeles, New Orleans, Hawai?i, and Sydney. The main NCIS series is the longest-running show of the franchise, which premiered its twenty-first season on February 12, 2024. NCIS first aired September 23, 2003, and episodes continue to be produced, with the 20th season premiering September 19, 2022.
NCIS is the primary federal law-enforcement agency of the United States Department of the Navy. Based at the Washington Navy Yard in Washington, D.C., the NCIS Major Case Response Team was led by Leroy Jethro Gibbs. Alden Parker, a former FBI special agent, now leads the team following his appointment early in season 19.