Air date: 2010-09-21

Runtime: 44 min

When one of their own disappears while undercover, the team must work alongside LAPD on a case involving human-trafficking, money laundering and drugs.

Air date: 2010-09-21

Runtime: 44 min

After a mysterious hit squad takes out a Special Agent on assignment, the NCIS team jumps into action before the next target is set.

Air date: 2010-09-28

Runtime: 44 min

The NCIS team jumps into action when video surveillance footage shows an ambush on a humvee transporting Marines in the desert. Meanwhile, Nate returns from his mystery assignment.

Air date: 2010-10-05

Runtime: 42 min

The team investigates the murder of a Marine who had top-level security clearance, and the corpse is missing a hand.

Air date: 2010-10-12

Runtime: 42 min

The team races against time to save a Naval Commander's daughter after seeing a video of her being buried alive.

Air date: 2010-10-19

Runtime: 44 min

Callen's ex-partner (Marisol Nichols) takes a Navy recruitment center hostage.

Air date: 2010-10-26

Runtime: 42 min

After terrorists kill a state department employee and a plastic surgeon, the team searches for the only witness who can identify the killers' surgically altered faces.

Air date: 2010-11-09

Runtime: 44 min

Wanted terrorists and top secret information are all involved in NCIS's investigation into the kidnapping and murder of a retired army Sergeant.

Air date: 2010-11-16

Runtime: 44 min

When a murdered antiques dealer's book of top-secret information goes missing, Hetty sends the NCIS team on a mission to find it.

Air date: 2010-11-23

Runtime: 44 min

Hetty and the NCIS team continue to search for an elusive book that has the attention of several foreign security agencies.

Air date: 2010-12-14

Runtime: 44 min

Kensi connects personally with a discharged Navy Intelligence officer suffering from post traumatic stress disorder who is the sole survivor of a deadly dispute being investigated by the NCIS team.

Air date: 2011-01-11

Runtime: 44 min

The NCIS team uncovers an experimental Navy tracking system when a body containing a top-secret residue is stolen from an autopsy room. Meanwhile, Callen challenges Hetty on the rock wall.

Air date: 2011-01-18

Runtime: 44 min

The team looks for the person responsible when classified pentagon documents are uploaded to a blog site.

Air date: 2011-02-01

Runtime: 44 min

Sam goes undercover as a prisoner to track down a terrorist group responsible for several bombings around the world.

Air date: 2011-02-08

Runtime: 44 min

After Callen catches a man breaking into his house, a former KGB operative leads the NCIS team to a shipment of counterfeit computer chips entering the United States.

Air date: 2011-02-15

Runtime: 44 min

Suspicious of an undercover venture involving a deal between corrupt cops and military personnel, Callen and Sam try to expose the illegal operation by posing as California highway patrol officers.

Air date: 2011-02-22

Runtime: 44 min

Deeks' morning routine is disrupted when he is shot during a convenience store robbery, leaving the NCIS team to investigate whether he was the assailants' intended target.

Air date: 2011-03-01

Runtime: 43 min

Sam resumes a former alias and boards a one-way flight to Yemen in hopes of tracking down a terrorist group's leader and rescuing the hostage son of a Saudi Prince.

Air date: 2011-03-22

Runtime: 42 min

NCIS investigates whether the life of a Venezuelan politician is in danger after a Navy Intelligence Commander who is responsible for tracking his moves suddenly disappears.

Air date: 2011-03-29

Runtime: 42 min

When an attempted robbery takes place at a secure facility on a Marine base, Kensi must determine what the thief intended to steal.

Air date: 2011-04-12

Runtime: 42 min

After a rocket engine expert is killed, NCIS tech operator Eric Beale goes undercover for the first time to ensure that the classified technology used to build satellites is safe.

Air date: 2011-05-03

Runtime: 44 min

Deeks resumes an old alias he is not fond of in order to protect his best friend and chief informant from a criminal group that wants him dead.

Air date: 2011-05-10

Runtime: 44 min

A Navy SEAL imposter's death gives the team a lead on a missing canister used to make deadly bombs.

Air date: 2011-05-17

Runtime: 44 min

Hetty's sudden resignation prompts Callen and the NCIS team to investigate the reason why she would disappear in the hopes of tracking her down.