A group kidnaps the wife and the young blind daughter of a Navy captain, who, on his computer, receives a demand for $2M. The officer's secretary secretly goes to the NCIS; the Gibbs team find the hostages, kidnapper, cash, and mastermind.
At base housing in Norfolk workers find, inside an underground room, the decomposing body of a young woman petty officer wearing a bridal gown. Gibbs and the gang find both the bad guy and a victim still alive under similar circumstances.
A farmer on a tractor sees an unattended intact Marine helo inside a crop circle on his land. While Gibbs and company investigate, a burned-out cabin turns up, as does a charred body. Locals evade, but the team solve both mysteries.
A seaman discovers the body of a young woman wearing the dress blues of a Naval officer aboard NAS Norfolk. Gibbs and the gang investigate; Ducky sees a mark on the victim's neck, which he connects to a cold case; the team find two killers.
A civilian dies on a Marine bombing range; while investigating, Gibbs finds a second body; other bodies also later appear. The NCIS and the FBI strangely work well together, and the NCIS team work well together, so they produce results.
A woman Naval aviator narrowly escapes an explosion of her car on a parking lot; she was a target of terrorist activity due to her official behavior in Afghanistan. The FBI solves the crime, and the NCIS protects the family of the victim.
A Marine corporal from WW2, who's a new widower and a recipient of the Medal of Honor, voluntarily goes to the HQ of the NCIS, meets Gibbs, and confesses having murdered a fellow Marine and best buddy. The team unravel it, and it works out.
While recovering after heart surgery, a commander dies due to an internal flash and the resulting fire without an apparent external cause; the Gibbs team investigate. Abby says it's murder, then she finds a key fact, and the gang solves it.
In family housing at Quantico the wife of a deployed major shoots and critically injures an intruder who tries to rape her; Gibbs and the gang investigate. Abby and McGee help with computer-based sleuthing, and the team catch the perps.
Tony has gone undercover as a prisoner chained to another prisoner, Jeffrey, aboard a jail bus for a transfer to another prison; Gibbs and other officials have staged an incident which allows the two prisoners to escape. The other prisoner is a member of a team responsible for the theft of valuable antiques smuggled from Iraq into the USA but placed in storage at the Naval Station, Norfolk, Virginia; Gibbs hopes that Jeffrey will lead them to the ringleader. Gibbs and Kate chase Tony and Jeffrey through the hills and vales, and Abby finds and feeds many good and ...
Two years after a Naval officer and his car disappear without a trace, a PI, seeking a reward, finds on the bottom of a lake the car and the skeletal remains of the missing man. After false starts Gibbs and the team solve the mystery.
While making a sales call, a telemarketer overhears an intrusion, a confrontation, and a fight, which appears to end with the murder of the prospect, PO Lambert in the Navy. One local detective asks Tony for his shoe size, and another one comments on Kate's eyes; Kate speaks about deja vu. The Metro PD turns it over to the NCIS. Abby and McGee work together in her lab while Gibbs waits and watches, Kate adds another clue, and Gibbs says that Lambert faked his own murder. Abby finds a connection, and the gang pursue it, then a Metro detective finds Lambert's body in ...
Ducky faces the "meat puzzle" of concurrently reconstructing three cadavers dissected into many small pieces. Ducky IDs one body, and the gang ID the others and a fourth. Ducky is the fifth target, but the team find him and save him.
A woman reports the strangulation of a sailor in his dress blues; the Metro PD responds to a 911 call, finds no body, calls the NCIS, and turns over the case. McGee, Gibbs, and the others seek evidence, and they find it and a solution.
A Marine sergeant dies while hiking with his wife and his best friend, another sergeant; the gang investigate. Ducky finds a wood-fiber fragment, and Abby reconstructs video footage; Gibbs questions, and the team put it all together.
The body of a woman sailor appears in bed in Norfolk with a bartender, who swears that he went to bed with a different chick. NCIS investigates. Death occurred by a huge OD of meth. Another woman dies. The gang find answers and killers.
A neighbor of a petty officer opens a package from Paraguay containing two human eyeballs mistakenly delivered to the mailbox of the neighbor. Gibbs and company investigate. Kate and Tony make discoveries in Paraguay, then they return.
A petty officer enters a bikini contest but fails to appear on stage when introduced; later someone finds her body face-down in a toilet bowl in a women's restroom. Tony enjoys his work; the gang pursue the leads and find the killer.
A petty officer reports that someone has assaulted her; the NCIS investigates. The victim has a mental illness and has had an affair with a captain under investigation by the FBI; she soon dies by murder. The team figure out everything.
An NROTC midshipman stumbles over the body of another middy at 02:00 on the campus of their university; a third mid has disappeared, and McGee finds his body. Abby helps. Gibbs finds the killer, then Kate and Tony cuff him.
A hospital corpsman stows his gear in a self-store room; after 10 months he dies in action in Iraq; then the skeletal remains of a high-school friend turn up in his storeroom. Despite local resistance Gibbs and company solve the mystery.
Tony opens a letter, literally SWAK, dispersing a fine white powder; the gang does the drill. Kate and Tony get a free trip to Bethesda. Gibbs and company find both the bad lady and the solution of a two-year-old rape case at the USNA.
Tony returns early, in time to rejoin the team in an investigation of a shooting of two Naval aviators. Tony finds a bomb, then it explodes; Gibbs says that someone has again tried to kill the NCIS gang, which loses one of their members.