
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.
Gibbs and Ducky see an antique war stick on television, and it could be the missing murder weapon to a 16-year-old cold case.
The NCIS headquarters are evacuated after the team discovers bomb materials on the roof of the squad room; the team reads the first draft of Ducky's book.
Gibbs is granted protective custody of a 10-year-old orphaned refugee when a case reveals she is the target of a violent gang.
NCIS searches for a petty officer who is suspected of assault and escapes when the sheriff transporting him crashes into a lake; Torres works closely with a blind witness who heard vital evidence that is needed to solve the case.