After a fabricated crime scene is discovered to be an attempt by a stalker to have Abby killed, the team works to discover who would like to see her dead.
Gibbs is flooded with long-suppressed memories after a terrorist's blast leaves him critically injured; Tony is put in charge as the team works a case.
When a band of pirates captures an American cargo ship and takes its captain hostage, it results in a tense standoff between the captains of the crews.
The son of a war veteran joins the Continental Army to fight the British, and when he is taken prisoner, his father goes on a bloody quest for vengeance.
Briscoe and Curtis try to pin down the schedule of a murder suspect; McCoy and Ross fly to Los Angeles to defend their actions against a defense counsel.
A young man who claims to have helped a murdered victim change a flat tire starts as the detectives' primary suspect but soon becomes a primary witness.
Police get a break when a bloodstain reveals a suspect to be a blood relative of the victim; prosecutors struggle over lawyer complications during court.