On NCIS Season 21 Episode 10, Parker and Knight discover three bodies on an old Navy ship that’s about to be sunk and turned into an artificial reef.

After discovering the remains of a Marine captain, the NCIS team travels to Texas to interrogate the suspected killer on NCIS Season 21 Episode 9.

On NCIS Season 21 Episode 8, an injured Parker and the NCIS team must discover the motive behind the kidnapping and death of a famous heart surgeon.

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

On NCIS Season 21 Episode 6, after discovering a navy pilot’s body riddled with unusual wounds, NCIS’ investigation draws the team into the rabbit hole of UFO conspiracy theories.

On NCIS Season 21 Episode 5, With the help of Knight’s dad, NCIS works to unravel the mystery of a recently used service weapon belonging to a missing agent.

On NCIS Season 21 Episode 3, when the team engages in Walk-A-Mile Day to gain new perspectives on different departments, things take a turn when Kasie receives a distress call from a mysterious man.

On NCIS Season 21 Episode 2, as NCIS mourns the loss of Ducky, the agents find comfort in working on one of his unfinished cases involving a Marine’s daughter.

On NCIS Season 21 Episode 1, 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.