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.
The body of a sailor is found in an underground chamber. She was dressed in a bridal gown, and chained. NCIS finds out there were other victims. Can they find the person responsible before the next one perishes?
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 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.
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.
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.
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.