NCIS season 21
NCIS season 21: 10 listed episodes, with episode titles, original air dates and optional synopses.
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Season 21 · Episode 1
Algún Día
· 60 min
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The NCIS team must help Torres when he puts his future at stake by confronting the man who tormented his family when he was a child.
Season 21 · Episode 2
The Stories We Leave Behind
· 60 min
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As NCIS mourns the loss of Ducky, the agents find comfort in working on one of his unfinished cases involving a woman whose father was dishonorably discharged from the Marines.
Season 21 · Episode 3
Lifeline
· 60 min
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When the NCIS team engages in Walk-a-Mile day to gain a new perspectives on different departments, things take a turn when Kasie receives a distress call from a mysterious man.
Season 21 · Episode 4
Left Unsaid
· 60 min
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The NCIS team is in a race against time to find a missing officer who disappeared during his wedding proposal.
Season 21 · Episode 5
The Plan
· 60 min
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With the help of Knight's dad, Special Agent in Charge Feng Zhao, NCIS works to unravel the mystery of a recently used service weapon belonging to a missing agent. Also, McGee is in a tailspin when DNA results reveal a close relative he was unaware of.
Season 21 · Episode 6
Strange Invaders
· 60 min
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After discovering a navy pilot's body riddled with unusual wounds, NCIS' investigation draws the team into the rabbit hole of UFO conspiracy theories.
Season 21 · Episode 7
A Thousand Yards
· 60 min
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NCIS comes under attack by a mysterious enemy from the past. Also, Vance tries to mend fences with his estranged son by explaining why, despite the ongoing dangers of his job, he still chooses to stay at NCIS.
Season 21 · Episode 8
Heartless
· 60 min
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The NCIS team looks for a motive behind the kidnapping and death of a famous heart surgeon.
Season 21 · Episode 9
Prime Cut
· 60 min
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After discovering the remains of a Marine captain, the NCIS team travels to Texas to interrogate the suspected killer.
Season 21 · Episode 10
Reef Madness
· 60 min
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Parker and Knight discover three bodies on an old Navy ship that's about to be sunk and turned into an artificial reef, when they're suddenly locked inside by a mysterious figure. Also, Vance offers Knight a unique opportunity.
Episode information and images from TVmaze, used under CC BY-SA 4.0. Episode lists follow original airing order and omit specials. Dates checked September 10, 2026.