Gibbs sends Ducky undercover to catch an international arms dealer, but Jenny's personal vendetta and a rival agency's interference hinder the operation.
An explosion in a mausoleum leads the NCIS team to discover the remains of five people, and they hope the families can make some connection between the victims.
Ducky is startled by a Marine, believed to have been frozen to death, when he wakes up before his autopsy begins; a trip to Baghdad is linked to Gibbs's past.
The Stooges are working as garbage boat operators who crash-land on a remote island, and they are quickly thrown in prison by the island's menacing governor.
After a woman's body is found in a subway station, a suspect is arrested, but the resulting case concerns the lack of medication supplied to him in prison.
Four found bodies leads to the prosecution of an amiable murder suspect who insists on representing himself and winning the admiration of a female juror.
Detectives Lennie Briscoe and Eddie Green will begin to conduct a thorough investigation into a case of a murdered woman found at the bottom of a lagoon.
The beating death of a restaurant owner leads detectives to thrill-seeking teenagers; McCoy is forced to decide how young is too young for the death penalty.