Callen returns back to the NCIS Office of Special Projects to solve a kidnapping case.

The NCIS team races to save one of their own when they receive video evidence of Special Agent Dominic Vail being held hostage months after he was kidnapped.

When one of their own disappears while undercover, the team must work alongside LAPD on a case involving human-trafficking, money laundering and drugs.

Suspicious of an undercover venture involving a deal between corrupt cops and military personnel, Callen and Sam try to expose the illegal operation by posing as California highway patrol officers.

The NCIS team investigates the murder of a former Navy intelligence officer who had been living a double life and traveling overseas on false passports.

After a highly decorated Navy Captain, Charles Langston, kidnaps a Veterans Affairs administrator who has been siphoning funds, the NCIS team must work with Hetty’s former Vietnam War colleagues, now-retired Admiral AJ Chegwidden and Admiral Sterling Bridges to solve the case.

Kensi is transported to a missile launch facility to help thwart a takeover of nuclear weapons.

Callen and Sam join forces with Anna Kolcheck and the Bureau of Alcohol, Tobacco and Firearms (ATF), when Arkady Kolcheck warns NCIS that a notorious international weapons dealer has returned to the states. Also, the case requires Eric to go undercover as a bank IT technician.

After a Navy Seal is attacked while moonlighting at a security job for a successful marijuana dispensary, Sam personally vows to apprehend the suspect out of respect for the Navy Seal brotherhood