After an engineer who was developing a new guided missile destroyer is murdered, Callen and Sam go undercover to track his co-worker aboard a plane to Tokyo to sell the classified intel. Also, Deeks plans a surprise get-together for Kensi and her out-of-town friends.

Callen and the team question CIA Agent Joelle Taylor's backstory after she escapes from a kidnapping and turns to Callen for help.

While assisting NCIS with an undercover operation, informant Elizabeth Williams is arrested and the team is unable to provide her with an alibi. Also, Callen meets with ATF Agent Anna Kolcheck who remains on suspension following her last joint case.

Callen and Sam run protection detail for retired Navy Admiral Kilbride in an operation to locate a missing Naval intelligence officer.

CIA Officer Veronica Stephens asks the team for help when an agricultural engineer Hetty asked her to bring to the United States disappears

Rountree and his younger sister are pulled over by police and treated harshly in a clear case of racial profiling. Also, NCIS investigates the death of a Navy photographer who was assigned to document the building of a new weapons station.

When NCIS investigates a shootout on a boat in which a rare cultural artifact is stolen, they’re shocked to learn who owns the boat.