NCIS continues its strong run on CBS, with two of the franchise’s shows set for returns in 2025. The NCIS series revolves around the lives of special agents from the Naval Criminal Investigative Service, with the characters originally introduced in an episode of JAG. Premiering in September 2003 on CBS, the procedural has gone on to become the network’s flagship show. Now in season, it is the third-longest-running scripted live-action U.S. primetime show currently airing on television. The original show has spawned six spinoffs, including the prequel NCIS: Origins, and NCIS: Sydney which debuted in 2022.