Callen and Sam work with Navy Captain Harmon "Harm" Rabb, Jr. (David James Elliott) to locate a group of ISIS sympathizers aboard the USS Allegiance. Also, Hetty enlists her friend, Lieutenant Colonel Sarah "Mac". Mackenzie (Catherine Bell), to help obtain information from a Russian diplomat.
Genres: Action & Adventure , Crime , Drama , Mystery
Keywords: crime-investigation , los-angeles-california , military , navy , spin-off , u-s-marine , undercover , watch-TV-series-online-free