Season 37, Episode 5

A girls' night out takes an unexpected turn when NCIS is called to investigate the motive of a possible arsonist; Torres struggles to find work/life balance.

McCall visits “The Grave Digger,” a serial killer she put behind bars a year ago, to uncover who is behind a series of copycat murders. Meanwhile, Dee skips her Peer Ear meeting to go to a party with Cam.

The team works the case of an investment advisor found dead shortly after her release from prison. Also, Mary Jo is left reeling by an unexpected development in her personal life.

While Watson and the team help a woman whose memory resets every three minutes, Watson struggles with auditory hallucinations and questions whether someone is behind his current decline. Also, Moriarty plots his next move.

Maddie's return to work proves to be more triggering than expected, as she may have returned too soon. Eddie struggles to adapt to his new surroundings.

Season 37, Episode 4

After a Navy Lieutenant's death reveals ties to Special Agent Sawyer, Torres and Knight uncover a murder linked to a wealthy family; Parker discovers a shocking connection between his mother's death and Lily.

After a soldier suddenly goes AWOL while planning to expose an alleged secret military project, McCall and the team learn that her life is in danger; Dante makes a career move to be closer to McCall and his family.