When did NCIS Season 15 Episode 21 air?
NCIS Season 15 Episode 21 aired on May 1, 2018 at 8 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.

Sara Carter begs Gibbs to investigate her mother's murder - she believes the wrong man was convicted.
Direct answers for episode-level questions and details.
NCIS Season 15 Episode 21 aired on May 1, 2018 at 8 PM ET.
This episode runs for approximately 43 minutes.
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