When did NCIS Season 19 Episode 4 air?
NCIS Season 19 Episode 4 aired on October 11, 2021 at 9 PM ET.


Back in force.
From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and Marine Corps personnel, regardless of rank or position.

Gibbs and McGee head to Alaska while the team works at home to uncover the conspiracy behind the serial killer.
Direct answers for episode-level questions and details.
NCIS Season 19 Episode 4 aired on October 11, 2021 at 9 PM ET.
This episode runs for approximately 45 minutes.
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