NCIS is flatlining in the ratings, and after CBS canceled some of the spinoffs, there's a good chance it will end soon.

Mondays are NCIS night. What about tonight, Monday, Jan. 20? Will there be a new episode of either NCIS or NCIS: Origins?

NCIS is a procedural drama that follows a team of investigators in the U.S. Navy and Marine Corps. Here's where you can watch ...