Adeste Fideles (1941)

WWII has ended and Hanna is still grieving over her husband's disappearance. When the Christmas Comet appears for the first time in 70 years, Hanna is caught in a terrible storm and knocked unconscious. When she wakes up, she's in 2016.

As the Twelfth Doctor nears regeneration, he stumbles on his first incarnation, also refusing to change. It takes a captain, a glass avatar and a familiar face to convince the Doctors the universe still needs them.

At the height of the Cold War, a troubled soldier forms a forbidden love triangle with a daring fighter pilot and his female comrade amid the dangerous surroundings of a Soviet Air Force Base.

Mary Marshall, serving a six year term for accidental manslaughter, is given a Christmas furlough from prison to visit her closest relatives, her uncle and his family in a small Midwestern town. On the train she meets Zach Morgan, a troubled army sergeant on leave for the holidays from a military hospital. Although his physical wounds have healed, he is suffering from post-traumatic stress disorder and is subject to panic attacks. The pair are attracted to one another and in the warm atmosphere of the Christmas season friendship blossoms into romance, but Mary is reluctant to tell him of her past and that she must shortly return to prison to serve the remainder of her sentence.

Follow a group of children who are evacuated to a Yorkshire village during the Second World War, where they encounter a young soldier who, like them, is far away from home.

It's Christmastime, and the Griswolds are preparing for a family seasonal celebration. But things never run smoothly for Clark, his wife Ellen, and their two kids. Clark's continual bad luck is worsened by his obnoxious family guests, but he manages to keep going, knowing that his Christmas bonus is due soon.

Experienced Green Beret sergeant Johnny Gallagher is escorting a prisoner, Airborne Ranger Thomas Boyette, back to the US, but Boyette escapes and Gallagher must risk life and limb to catch him.

NYPD cop John McClane's plan to reconcile with his estranged wife is thrown for a serious loop when, minutes after he arrives at her office's Christmas Party, the entire building is overtaken by a group of terrorists. With little help from the LAPD, wisecracking McClane sets out to single-handedly rescue the hostages and bring the bad guys down.

Newly widowed Kathy plans to skip out on decking the halls and trimming the tree this Christmas, trying to avoid anything that will bring back memories of her late husband. When Kathy meets handsome Christmas tree shop owner Tim, their undeniable chemistry—along with an ornament Tim gives her that symbolizes hope—helps Kathy open up to the joys of the season again.

After two American prisoners are killed by guards in the act of escaping from a German POW camp in World War II, barracks black marketeer J.J. Sefton is suspected of being an informer.