The Doctor is forced on an impossible mission, to a place even the Daleks are too terrified to enter. A planetary prison confining the most terrifying and insane of their kind, the Doctor and the Ponds must find an escape route.

An unmanned spaceship and its impossible cargo of dinosaurs hurtle towards certain destruction unless the Doctor and his ragtag gang of adventurers can save it.

The Doctor finds himself the reluctant Sheriff of a Western town under siege by a relentless cyborg. But who is he and what does he want? The answer seems to lie with the mysterious Kahler-Jex, an alien doctor

The Doctor and the Ponds puzzle an unlikely invasion of Earth, as millions of sinister black cubes arrive overnight, almost like presents falling from the sky. What are they and most importantly, who sent them?

The Doctor's farewell to Amy and Rory - a race against time through the streets of Manhattan as New York's statues come to life around them. With Rory's life in danger, the Doctor and Amy must locate him before it's too late.

The Doctor's search for Clara Oswald brings him to modern day London, where Wi-Fi is everywhere. But something dangerous is lurking in the signals, picking off minds and imprisoning them.

Clara wants to see something awesome so the Doctor whisks her off to the rings of the planet Akhaten, where the Festival of Offerings is in full swing. But something is stirring in the pyramid, and a sacrifice will be demanded.

The Doctor and Clara land on a damaged Russian Submarine in 1983 as it spirals out of control into the ocean depths. An alien creature is loose on board, having escaped from a block of Arctic ice.

Clara and the Doctor arrive at Caliburn House, a haunted mansion sat alone on a desolate moor. Within its walls, a ghost hunting Professor and a gifted psychic are searching for the Witch of the Well.

A spaceship salvage team drags the TARDIS on board, sending its systems into meltdown. As the Doctor marshals the motely salvage crew outside, he realises Clara is still trapped within his malfunctioning ship.

In Victorian Yorkshire, bodies glowing red and with skin waxy are found. When the Doctor and Clara go missing, it's up to Vastra, Jenny and Strax to rescue them before they too fall victim to the Crimson Horror!

Hedgewick's World of Wonders was once the greatest theme park in the galaxy. When the Doctor, Clara, Artie and Angie arrive, the last thing they expect is the re-emergence of one of the Doctor's oldest foes.

Clara is alerted that the deadly Whisper Men are closing in on Vastra, Jenny and Strax. Someone is kidnapping the Doctor's friends, leading him toward the one place in all of time and space that he should never go.

Christmas Eve, 1892. A chilling menace threatens Earth and an unorthodox young governess calls on the Doctor for help. However, the Doctor is in mourning. As old friends return, will the Doctor really abandon humankind?

The Doctors embark on their greatest adventure in this 50th Anniversary Special: in 2013, something terrible is awakening; in 1562, a murderous plot is afoot and an ancient battle reaches its devastating conclusion.

The Eleventh Doctor takes the controls of the TARDIS for the last time in The Time of the Doctor. The massed forces of the universe's deadliest species gather, drawn to a mysterious message.