Aired: 9/21/2010
When one of their own disappears while undercover, the team must work alongside LAPD on a case involving human-trafficking, money laundering and drugs.
After a mysterious hit squad takes out a Special Agent on assignment, the NCIS team jumps into action before the next target is set.
Aired: 9/28/2010
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.
Aired: 10/5/2010
The team investigates the murder of a Marine who had top-level security clearance, and the corpse is missing a hand.
Aired: 10/12/2010
The team races against time to save a Naval Commander's daughter after seeing a video of her being buried alive.
Aired: 10/19/2010
Callen's ex-partner (Marisol Nichols) takes a Navy recruitment center hostage.
Aired: 10/26/2010
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.
Aired: 11/9/2010
Wanted terrorists and top secret information are all involved in NCIS's investigation into the kidnapping and murder of a retired army Sergeant.
Aired: 11/16/2010
When a murdered antiques dealer's book of top-secret information goes missing, Hetty sends the NCIS team on a mission to find it.
Aired: 11/23/2010
Hetty and the NCIS team continue to search for an elusive book that has the attention of several foreign security agencies.
Aired: 12/14/2010
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.
Aired: 1/11/2011
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.
Aired: 1/18/2011
The team looks for the person responsible when classified pentagon documents are uploaded to a blog site.
Aired: 2/1/2011
Sam goes undercover as a prisoner to track down a terrorist group responsible for several bombings around the world.
Aired: 2/8/2011
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.
Aired: 2/15/2011
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.
Aired: 2/22/2011
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.
Aired: 3/1/2011
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.
Aired: 3/22/2011
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.
Aired: 3/29/2011
When an attempted robbery takes place at a secure facility on a Marine base, Kensi must determine what the thief intended to steal.
Aired: 4/12/2011
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.
Aired: 5/3/2011
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.
Aired: 5/10/2011
A Navy SEAL imposter's death gives the team a lead on a missing canister used to make deadly bombs.
Aired: 5/17/2011
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.