A Four-Way 'NCIS' Crossover Kinda-Sorta Happened Unexpectedly With Scott Bakula, But Where Is Mark Harmon?

Even though CBS' fall TV schedule is running light on new scripted episodes from its most popular dramas, "NCIS" fans didn't have to wait until September to see the franchise pull off a four-show crossover, or at least the closest thing that audiences are going to get in that department. To be fair, 2023 kicked off with its three then-currently airing dramas crossing over, as "NCIS" characters mixed it up with the leads from "NCIS: Los Angeles" and "NCIS: Hawai'i." But then Daniela Ruah went and showed off an unexpected reunion that topped it all, thanks to Scott Bakula and another "NCIS: New Orleans" vet. Sadly, however, Mark Harmon was nowhere to be found.