
Naval Criminal Investigative Service Special Agent Leroy Jethro Gibbs leads a group of colorful personalities in investigating crimes -- ranging from murder and espionage to terrorism -- that have evidence connected to Navy and Marine Corps personnel. The team includes MIT graduate Timothy McGee, Ellie Bishop, who specializes in international threat assessment, charismatic and unpredictable Nick Torres, and forensic psychologist Jack Sloane. Dr. Donald "Ducky" Mallard brings his vast experience in forensics into play to help solve cases.

A gruesome mishap at a Navy petty officer's gender reveal party leads NCIS to the case of a missing teacher who was popularized on a true-crime podcast.

When Jimmy and Ducky disappear while transporting a body from a crime scene, the team races to find them.

NCIS investigates the apparent suicide of a retired Navy officer who was in Palmer and Knight's grief group; Torres gets a call from NCIS Special Agent Jane Tennant to come to Hawaii.

Gibbs' barber asks for help when he suspects his son is involved in a high-profile crime; the team looks into the disappearance of Navy funds.