Watch the official “This is Not a Drill” clip from the CBS cop drama series NCIS Season 20 Episode 10, created by Donald Bellisario and Don McGill.<br /><br />NCIS Cast:<br /><br />Gary Cole, Sean Murray, Brian Dietzen, Rocky Carroll, Wilmer Valderrama, Katrina Law, Diona Reasonover and David McCallum<br /><br />Stream NCIS now on Paramount+!