The entire NCISverse who are in Washington D.C. to celebrate the retirement of their former professor. However, their worlds intertwine when the NCIS agents are forced to investigate the same professor's suicide.
Parker discovers he's a victim of identity theft while investigating the unusual murder of a Navy ensign. Knight and Jimmy face hurdles in their relationship as their connection heightens.
When an old pal of Torres' comes to him - disheveled and bloodied - for guidance amid a undercover FBI operation and then disappears, NCIS helps track him down. McGee prepares to be a contestant on a popular game show.
NCIS investigates the death of a ride-share driver who was found after a car accident. Parker's dad, who is temporarily living with him, assists the team in their investigation.
NCIS works to solve the murder of a marine who has been killed for helping Afghan refugees. Jimmy Palmer navigates the pressures of parenting when his teenage daughter is eager to go on a date.
The NCIS team digs deep to investigate a Navy lieutenant who's accused of trying to murder her husband, but has no memory of the attack; Kasie navigates a potential medical scare.
NCIS works to solve the murder of a senator's daughter who has a rebellious reputation and large online following: Jimmy gets competitive with an old college rival.
When a suspicious murder occurs in the classified section of the National Archive, NCIS must investigate a string of Russian spy encounters that may be linked to the crime.