The manhunt for Eli David and Jackie Vance's murderer turns into a witch hunt against Gibbs and the team, leaving the future of the agency in jeopardy.
The CIA enlists SWAT to help investigate an international crime lord; Tan's mother is racially discriminated against; Hondo stumbles upon his ex-girlfriend.
Hondo reaches a crossroads when he is asked to speak at a parole hearing on behalf of a childhood friend; the team assists the FBI to catch a mob informant.
A memorial service is threatened by a rogue extremist; Hondo and Darryl's father start to butt heads when Darryl's father gets released early from prison.
A school officer and a student have a physical altercation so Frank must deal with an outraged public's efforts to defund the NYPD School Safety Division.
A detective is shot after being reassigned; a man is murdered after an altercation with a neighbor; Anthony is pulled in different directions with a promotion.
Mayor Chase passes on Frank in favor of asking Jamie to lead his security detail, leaving Frank reeling; Danny & Baez look into the death of a rich college kid.
When a naval commander aboard Air Force One is discovered to have been poisoned to death, the Naval Criminal Investigative Service is sent in to investigate.
A dead Navy commander is thought to have been a part of an ill-fated drug deal after his body washes up on the beach along with two dead drug smugglers.
The team investigates the death of a sailor who was found underwater wearing in his dress whites; Abby examines a connection to a fantasy role-playing game.
When a hunter discovers the mummified corpse of a Navy lieutenant who went missing ten years ago, the NCIS is brought in to determine who murdered the officer.
Gibbs and the team investigate a Navy officer who was employed as a translator at Guantanamo Bay, Cuba, and died with a cache of emeralds lodged in his stomach.
After a severed leg with a Marine tattoo is found in a trash bin, Ducky and Abby try to identify the victim, and their investigation leads them to a small town.
A Marine veteran asks Frank to ignore NYPD age limit rules for his recruitment; Erin begins following a supposed wrongful conviction because of an old rival.
Man recently released after 12 years in jail begins stalking Erin, leading her to get Anthony and Danny to look into her office's role in the man's sentencing.
Danny and Jamie team up with their nephew on a search for an undocumented, trafficked teenage girl whose case relates back to Danny and Baez's investigation.