NCIS fans are eagerly awaiting the return of the popular police procedural for its 21st season. CBS has given the green light for the new series, despite some recent challenges for the franchise. NCIS New Orleans and NCIS Los Angeles have concluded, but NCIS Hawaii is continuing for a third season. The overall franchise, now in its 21st season, is the third longest-running US primetime drama series. Due to the recent strikes in Hollywood, the production of NCIS has been delayed, and the new season is expected to premiere in early-mid 2024. NCIS Sydney, a new spin-off, will debut next month.