The where Gibbs and Bishop deal with a radio-silent submarine .
The atmosphere on the submarine is tense. Chief Petty Officer Basilio warns Mac and Harm that the boat is "spooked," as crew members keep getting sick or injured under mysterious circumstances. The investigation reveals a chilling pattern of sabotage: [S4E16] Silent Service
In the episode " Silent Service " (Season 4, Episode 16) , Commanders Harmon Rabb and Sarah "Mac" MacKenzie are dispatched to the USS Watertown , a Los Angeles-class nuclear submarine, to investigate a series of alarming "accidents" and sudden illnesses that have plagued the crew. The Story Aboard the USS Watertown The where Gibbs and Bishop deal with a
: A crewman is killed when a high-pressure steam pipe fails—not due to age, but because it was precisely nicked with a scalpel. The investigation reveals a chilling pattern of sabotage:
: The investigator eventually identifies Hodge , a crew member suffering from Münchausen syndrome by proxy . Hodge has been intentionally causing life-threatening emergencies so he can swoop in, act as the hero, and "save" his shipmates.