Reef Madness
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.
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S21 E1
Algún Día
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.
S21 E2
The Stories We Leave Behind
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.
S21 E3
Lifeline
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.
S21 E4
Left Unsaid
The NCIS team is in a race against time to find a missing officer who disappeared during his wedding proposal.