
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.
When a helicopter crew's training mission ends in a disastrous crash, the NCIS team must figure out what happened and find the missing pilot; Ziva challenges McGee and Tony to a dare.
When a petty officer is shot in a billionaire's car, the investigation leads the team to Gibbs' namesake.
When a Navy lieutenant is killed in a brutal attack shortly after returning home from the Middle East, the team questions the victim's friend, a Marine captain with post-traumatic stress disorder.
When a man is murdered after a neighborhood dinner party, the team discovers every guest is lying; the deeper the team digs, the less they can agree on what kind of case they're even working.