In a Mars base, the inhabitants are being infected by a mysterious water creature which takes over its victims. The Doctor is thrust into the middle of this catastrophe, knowing a larger one is waiting around the corner.

Orbiting a quiet backwater planet, the massed forces of the universe's deadliest species gather, drawn to a mysterious message that echoes out to the stars. And amongst them, the Doctor. Rescuing Clara from a family Christmas dinner, the Time Lord and his best friend must learn what this enigmatic signal means for his own fate and that of the universe.

A meeting in a London bus with jewel thief Lady Christina takes a turn for the worse for the Doctor when the bus takes a detour to a desert-like planet, where the deadly Swarm awaits.

It's Christmas Eve, 1938, when Madge Arwell comes to the aid of an injured Spaceman Angel as she cycles home. He promises to repay her kindness - all she has to do is make a wish.

The Doctor arrives in Victorian London. It's Christmas, but snow isn't the only thing descending on the tranquil and jubilant civilization, as familiar silver giants from an alternate reality are amassing in numbers. The Cybermen are on the move again, and the only beings who can stop them are the Doctor and... another Doctor?

The Doctor has retired to 1892 London. Despite the protests of his allies, he is determined to keep out of mankind's affairs. However, a governess named Clara has stumbled upon a plot which only the Doctor can unravel, involving the death of her predecessor in ice and the sinister Dr. Simeon, who controls monsters made of sentient snow. And there is another mystery afoot: Clara is the spitting image of Oswin Oswald, whom the Doctor saw die in the Dalek asylum...

A young bride in the midst of her wedding finds herself mysteriously transported to the TARDIS. The Doctor must discover what her connection is with the Empress of the Racnoss's plan to destroy the world.

The newly-regenerated Doctor arrives in Victorian London, and Clara Oswald struggles to embrace the man he has become. All the while, they reunite with the Paternoster Gang to investigate a series of combustions that have been occurring all around the city.

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.

The Doctor struggles to help the only remaining crewmember of a crashing gunship. The people of the planet below offer to save his life, but at a dear cost to the life he's lived for hundreds of years.

Three Russian friends work in New York, party hard and chase women. It's great times until they get cursed by a drunken Russian night club owner, who turns out to be Saint Valentine. St. Valentine's curse is simple - the guys lose all their manly powers until they find their true love. It turns out to be harder than it sounds - our boys have a lot of growing up to do. Fast.

Miser Ebenezer Scrooge is awakened on Christmas Eve by spirits who reveal to him his own miserable existence, what opportunities he wasted in his youth, his current cruelties, and the dire fate that awaits him if he does not change his ways. Scrooge is faced with his own story of growing bitterness and meanness, and must decide what his own future will hold: death or redemption.

When Joe Valachi has a price put on his head by Don Vito Genovese, he must take desperate steps to protect himself while in prison. An unsuccessful attempt to slit his throat puts him over the edge to break the sacred code of silence.

In 2013, something terrible is awakening in London's National Gallery; in 1562, a murderous plot is afoot in Elizabethan England; and somewhere in space an ancient battle reaches its devastating conclusion. All of reality is at stake as the Doctor's own dangerous past comes back to haunt him.

The Seventh Doctor becomes the Eighth. And on the streets of San Francisco – alongside new ally Grace Holloway - he battles the Master.

When disaster hits the Titanic, the Doctor uncovers a threat to the whole human race. Battling alongside aliens, saboteurs, robot Angels and a new friend called Astrid, can he stop the Christmas inferno?

The Doctor and Clara face their Last Christmas. Trapped on an Arctic base, under attack from terrifying creatures, who are you going to call? Santa Claus!

Nathan, 16, lives alone with his father Stephane. A newcomer in high school, he is invited to a party and falls in love with Louis, a boy in his class. They find themselves out of sight and kiss each other, but someone takes a picture of them. Soon, the photo is published on Facebook and a storm overtakes their lives as they face bullying and rejection.

Three children are accidentally transformed into fish after consuming a potion made by an eccentric scientist. The kids end up in the sea, with one problem: they must find and drink the antidote within 48 hours, or forever remain as fish.