Season 12, Episode 1 – “Twenty Klicks”
Season 12 begins with Gibbs and McGee traveling to Russia to escort home an NCIS computer engineer who is connected to classified intel. But the mission is compromised, and the trio go off the grid while being hunted by a Russian mercenary group. Back at home, the NCIS team race to find their missing colleagues.
Season 12, Episode 2 – “Kill the Messenger”
A Navy lieutenant is murdered on his way to a private meeting with the President. The NCIS team try to determine if the death was part of a recent series of muggings in the area or if it was a targeted hit to keep intelligence secrets.
Season 12, Episode 3 – “So It Goes”
When an NCIS case reveals a connection to Ducky’s estranged childhood best friend, he and Special Agent Bishop travel to London for interviews with family and co-workers of his friend. While there, Ducky finds himself reminiscing about the choices he made in his past and the subsequent impact they had on his adult life.
Season 12, Episode 4 – “Choke Hold”
The NCIS team is assigned to a joint terrorism task force by the Secretary of the Navy after a Naval research scientist is murdered and the chief suspect is wanted by the Russian government. Gibbs and DiNozzo run interference with task force leader Leia Pendergast.
Season 12, Episode 5 – “The San Dominick”
Gibbs spots a dead man in the water during a joint Coast Guard and NCIS training exercise at sea. The investigation reveals the man is a missing crew member from a ship 60 nautical miles away. Upon boarding the ship for questioning, Gibbs discovers the vessel has been commandeered by pirates.
Season 06, Episode 06 – “SEAL Hunter”
Sam is arrested for murdering a woman, but Callen and Granger work to clear his name. Meanwhile, Kensi and Deeks discover a link between the victim and a student from Sam’s past.
Season 12, Episode 7 – “The Searchers”
The NCIS team investigate the murder of a retired master sergeant and uncover a fraudulent charity that preys upon families who are searching for missing military personnel. Meanwhile, Bishop agonizes over the results of her probation evaluation; and Tony contemplates adopting a stray cat that followed him home.
Season 12, Episode 8 – “Semper Fortis”
A petty officer is killed in a hit-and-run accident; and Gibbs tries to clear a Navy Hospital corpsman when she is indicted for illegally providing medical aid to the victims of the crash.
Season 12, Episode 9 – “Grounded”
DiNozzo, Bishop and her husband, who are stuck at Dulles airport due to inclement weather, work an NCIS case involving an elevated terrorist threat to Northeast airports during the Thanksgiving travel period.
Season 12, Episode 10 – “House Rules”
The NCIS team consult with three cyber-terrorists they imprisoned after a citywide Internet shutdown the week before Christmas. Meanwhile, McGee reflects on the case and Gibbs’ infamous rules as he writes a heartfelt letter to his father.
Season 12, Episode 11 – “Check”
The NCIS team investigate a series of crime scenes that appear to be copycats of previous cases. Meanwhile, two of Gibbs’ ex-wives show up at a crime scene to discuss something important with him.
Season 12, Episode 12 – “The Enemy Within”
The NCIS team must investigate a series of crime scenes that appear to be copy-cats of previous cases. Also, two of Gibbs’ ex-wives, one of which the team has yet to meet, show up at a crime scene to discuss something important with him.