When a Marine falls ill during a training mission due to an attack by a genetic weapon, the NCIS must track down the person responsible for unleashing it. Also, Deeks struggles with balancing work and home life when Rosa comes down with the flu.
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