[s4e16] | Silent Service

: 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 The Silent Service on Prime Video.

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