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.

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.

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.

After Martha Jones parts company with the Doctor, his TARDIS collides with another, and he comes face to face with one of his previous incarnations.

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 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.

Amy Pond and Rory Williams are trapped on a crashing space liner, and the only way the Eleventh Doctor can rescue them is to save the soul of a lonely old miser. But is Kazran Sardick, the richest man in Sardicktown, beyond redemption? And what is lurking in the fogs of Christmas Eve?

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.

Meet 17-year-old Hala, who struggles to balance being a suburban teenager with her traditional Muslim upbringing. As she comes into her own, Hala finds herself grappling with a secret that threatens to unravel her family.

Jane, a soon-to-be-married woman, is reunited with her imaginary friend Michael who returns in a human form. Soon, Jane begins doubting her feelings for her fiance as she gets attracted to Michael.

An illiterate stooge in a traveling medicine show wanders into a strange town and is picked up on a vagrancy charge. The town's corrupt officials mistake him for the inspector general whom they think is traveling in disguise. Fearing he will discover they've been pocketing tax money, they make several bungled attempts to kill him.

The Doctor confronts a Graske as he poses a threat not just to the Doctor, but to the BBC Proms.

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!

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.

Ben Cooper and his family are struggling to get a grip on household chores, school and work. So when Ben sees that a Smart House is being given away, he enters the competition as often as he can, until they eventually win the house (named Pat). After moving in, Pat's personality radically begins to change, turning the Coopers against her.

After a woman shoots a man to death, a damning letter she wrote raises suspicions.

Dangerous missions are the bread and butter of the Thunderbirds, a high-tech secret force employed by the government. Led by Jeff Tracy (Bill Paxton), the Thunderbirds are at the top of their game, but their nemesis, The Hood (Ben Kingsley), has landed on their island and is attempting a coup by using the team's rescue vehicles. He'll soon discover that the Thunderbirds won't go down.

A group of animals waiting for the annual flood they rely on for food and water discover that the humans, who have been destroying their habitats have built a dam for a leisure resort. The animals endeavour to save the delta and send a message to the humans not to interfere with nature.

A disgraced children's puppeteer returns to his childhood home and is forced to confront his wicked stepfather and the secrets that have tortured him his entire life.