After the NCIS team tracks evidence from the murder of a Navy captain to Ducky’s deceased mother, Ducky looks back and questions a pivotal life choice he made 37 years ago. Also, the team exchanges holiday gifts, and Gibbs spends Christmas dinner with Fornell.
Jess struggles to keep the loft's Secret Santa gift exchange afloat. When Winston believes his online gift order for Cece won't be delivered in time, he and Schmidt must endure going to an actual store to find a replacement gift. Meanwhile, Reagan surprises Nick, who helps makes Jess' Christmas one to remember.
Katie's holiday spirit, never great to begin with, is soured even further when Viv corners her into helping out with the school Christmas pageant. Greg, determined to teach Taylor and Oliver the true meaning of Christmas, takes them to a local nursing home to cheer up the residents, but things don't quite turn out the way he planned.
While the Huangs are out at the movies, Evan is accidentally left home alone, and Jessica vows to make it up to him. Meanwhile, Marvin takes a spill and is visited by Ghosts of Christmas Past, Present and Future.
Mary Kahn was an everyday parishioner who ascended to the Church of Scientologys highest levels of spiritual enlightenment. But as she shares with Leah, the price tag of her experience was extreme eventually including the relationship with her youngest son.
Dr. Bull confronts his past when he returns to his childhood home, assisting in the arson defense of a young man whose contentious ties to the town mirror Bull's own.
As the thaw draws to a close, Alaskans battle the clock to maximize their final days of sunlight in the Arctic.
When the judges move to oust Tribunal President Webb, MacArthur must appoint a new leader. The recently arrived justice from India stirs tensions.
Letty returns to her hometown armed with a new plan to take custody of her son, Jacob, with Javier's help. But Letty is confronted with the stark realities of motherhood when a day with her son turns into a crisis that could send her back to prison.
After the strain of Timothy Evans's trial, Christie finds it increasingly difficult to maintain the charade. As his marriage breaks down, he embarks upon a course of action which finally reveals his true nature to the world.
Rick and Marty Lagina believe they have finally located an ancient treasure vault in the Oak Island Money Pit.
Mark and Digger struggle with a special recipe for a shine legend. Big Chuck tries to redeem himself after destroying Josh's operation. Chico and Sandra continue working on their still site, but disaster strikes.
The Chanels are overwhelmed when their TV idol, Dr. Scarlett Lovin, visits the C.U.R.E. Institute. Meanwhile, Hester calls a Green Meanie summit as the killers put their final kill plan into effect.
As Christmas approaches, Sue keeps a holiday secret from the family. After agreeing to watch the neighbor’s three kids, Brick finds himself trying to hide from them as they had such a good time that they keep wanting to come over and play. Mike doesn’t know how to react when Bill Norwood gives him a Christmas gift for the first time ever,
Investigators find a new clue about the missing Malaysia Airlines flight that disappeared in . An astronaut spots something strange in the Sahara Desert. A mysterious orange sludge invades a remote village in Alaska.
Eileen will stop at nothing to win the Christmas choir competition and gives the coveted Christmas choir solo to their newest member, Brett, to Kennys dismay, while Jimmy is tasked with spying on their toughest competitor, Sheila Demars. But, when Kenny attempts to sabotage Bretts role, he finds a potential love interest. Meanwhile, Shannon accidentally gives Pat the wrong impression about a Christmas present she plans on giving to Ethan.
Bob and Johns investigation continues in Spain, Morocco and Argentina. The teams look into Hitlers possible escape route while uncovering a plan for a Nazi th Reich.
The team suspect foul play when a Marine corporal and amateur race-car driver is involved in a fatal crash. Elsewhere, the U.S. Attorney's office gathers evidence for a Grand Jury indictment appeal in the Garcia case that would extricate the cartel from the city.