The Naval Criminal Investigative Service's team, led by Special Agent Leroy Jethro Gibbs, conducts criminal investigations involving the U.S. Navy and Marine Corps.

S5, E12


The team stakes out a warehouse to catch a suspected thief but ends up witnessing a murder; Ducky keeps a secret from the team.

S5, E13

Dog Tags

Abby risks her career in defense of a dog that authorities believe is behind a fatal mauling; Gibbs tries to ferret out the secret Jenny is keeping.

S5, E14

Internal Affairs

When the dead body of arms dealer La Grenouille is discovered, the FBI investigates the NCIS team, and Jenny Shepard becomes the prime suspect.

S5, E15

In the Zone

Two members of the team are sent to Iraq when a mortar attack in Baghdad turns into a murder.

S5, E16


Ziva's undercover assignment turns deadly when the serial killer she is tracking becomes suspicious of her.