That is, he was until the network informed him that if he left, they would cancel the show. THR reported at the time that Harmon was in negotiations to appear in a “handful” of episodes if CBS renews NCIS for its 19th season (which it did). Harmon also has an executive producer credit on NCIS and NCIS: New Orleans. As recently as 2019, Harmon told PEOPLE, “I’ve always thought if there’s ever a time where the writers are walking into the room and going ‘I don’t know what to do,’ then I think we all have to look at each other and call it a day. But we’re not there yet.” CBS has a vested interest in keeping NCIS going, so they may want to accommodate Harmon’s wishes as to what it will take for him to return for one more season. Not only is NCIS the most-watched series on television, but it’s also the No. 1 drama in the world, meaning it makes a lot of money for the network. The current franchises of NCIS take place in Washington, D.C., Los Angeles and New Orleans, and if NCIS: Hawaii were to go forward, it is reported that Chris Silber, the showrunner on NCIS: New Orleans, would take on the same job for the new series in the franchise. CBS is no stranger to filming shows in the 50th state. It currently has Magnum P.I. in production, and last season wrapped Hawaii Five-0 after ten seasons. NCIS airs Tuesday nights at 8 p.m. ET/PT on CBS. Find out what new Netflix TV shows we’re most excited about this year.