On a dark, frozen planet where no planet should be, in a doomed city with a sky of stone, the last denizens of Earth's long-lost twin will pay any price to survive, even if the laser scalpels cost them their love and hate and humanity. And in the mat-infested streets, around teatime, the Doctor and Nyssa unearth a black market in secondhand body parts and run the gauntlet of augmented police and their augmented horses.

The human race is locked in deadly combat with the android hordes in the Orion System. Light-years from the front line, the Doctor and Charley arrive to sample the dubious delights of a galactic backwater, little suspecting that the consequences of the Orion War might reach them there. But High Command's lust for victory knows no bounds.

Hurrah! The deadly Daleks are back! Yes, those loveable tinpot tyrants have another plan to invade our world. Maybe this time because they want to drill to the Earth's core. Or maybe because they just feel like it. And when those pesky pepperpots are in town, there is one thing you can be sure of. There will be nonstop, high-octane mayhem in store. And plenty of exterminations! But never fear. The Doctor is on hand to sort them out. Defender of the Earth, saviour of us all.

On 19th century Earth artist Edvard Munch hears an infinite scream pass through nature. Centuries later his painting of that scream hangs in a gallery on the barren dust world Duchamp 331. Why is there a colony of artists on a planet that is little more than a glorified garage? What is the event that the passengers of the huge, opulent pleasure cruiser 'Gallery' are hoping to see? And what is hidden in the crates that litter the cargo hold?

Gallifrey is in a state of crisis, facing destruction at the hands of an overwhelming enemy. And the Doctor is involved in three different incarnations - each caught up in a deadly adventure, scattered across time and space. The web of time is threatened - and someone wants the Doctor dead. The three incarnations of the Doctor must join together to set time back on the right track - but in doing so, will they unleash a still greater threat?

Many years ago, on a dark and stormy night, the disfigured and enigmatic Dr John Smith invited his closest friends, Inspector Victor Schaeffer and his wife, Jacqueline, to a dinner to celebrate his birthday. A few hours later all the occupants in that house had been changed - ­some were dead, others mentally scarred forever by the events of that night. So, what happened to the distinguished dinner guests on that evening? Perhaps we'll never know.

One would-be assassin is in a mental ward. Another's on the run. Their intended victim is stirring up the mobs. Terrorists are planning a strike of their own. A talk-radio host is loving every minute of it. A Whitehall insider whispers about a mysterious UN operative with a hidden agenda. Everyone's got someone they want to be afraid of. It'll take only a little push for the situation to erupt - and something is doing the pushing. But you can trust the Doctor to put things right. Can't you? Written by: Jonathan Blum.

Two thousand years ago, a volcanic eruption wiped the Roman city of Pompeii from the face of the Earth. It also buried the Doctor's Tardis.... Arriving in Pompeii one day before the disaster, the Doctor and Mel find themselves separated from their ship and entangled in local politics. As time runs out, they fight to escape from the shadow of Mount Vesuvius. But how can they succeed when history itself is working against them?

When the planet Archetryx is threatened by a Dalek assault squad, the Doctor and Evelyn become embroiled in an ever-deepening mystery. What has become of President Romana, missing for 20 years? What lurks in the vast gravity wells of Archetryx? What is the secret of the ancient element the Daleks are synthesising - and how does Gallifrey feature in the plans? The Doctor finds that if his oldest enemies cannot conquer the universe, they will watch it go up in flames....

October 1944: as World War II draws towards its conclusion, a Nazi defeat begins to seem almost inevitable. But that might be about to change.... Two intruders are captured in the grounds of Colditz Castle, the most secure POW camp in Germany. At first the guards think they're dealing with British spies. But the strangers arrived in an advanced travelling machine, the likes of which they've never seen before. With this Tardis in their hands, the Third Reich might triumph after all.

The Doctor and Romana find themselves in the Proxima System, where enigmatic Conglomerate CEO Cuthbert has been conducting his infamous 'experiment'. An experiment which might accidentally rip the universe apart. Meanwhile, living conditions on Proxima Major have become harsh and hostile. Climate change has turned the landscape into a freezing wasteland and an alien power has condemned much of the population to life inside internment camps.

Tracking a nexus point in time, the Doctor meets Dr. Evelyn Smythe, a history lecturer whose own history seems to be rapidly vanishing. The Doctor must travel back to Tudor times to stabilise the nexus and save Evelyn's life. But there he meets the Queen of England and uses all his skills of diplomacy to avoid ending up on the headman's block.... Written by: Jacqueline Rayner. Directed by: Gary Russell.

Landing in Alaska, the Doctor and Nyssa encounter a group of people in a most unusual house, cut off not only by the harsh climate but by their individual secrets and obsessions. Millionaire Shaun Brett is utilising chunks of the local area to construct a shrine to his dead father. But when deadly creatures start roaming outside and a terrifying discovery is made inside the house, the Doctor realises that Brett has unleashed an unimaginably ancient force. Written by Stephen Cole. Directed by Gary Russell.

Twas the night before Christmas, and all through the house not a creature was stirring.... But something must be stirring. Something hidden in the shadows. Something which kills the servants of an old Edwardian mansion in the most brutal and macabre manner possible. Exactly on the chiming of the hour, every hour, as the grandfather clock ticks on towards midnight. Trapped and afraid, the Doctor and Charley are forced to play detective to murders with no motive, where even the victims don't stay dead.

The Doctor and Peri find themselves in the Museum of Aural Antiquities, where every sound is stored for posterity - from the speeches of Visteen Krane to security service wiretaps and interrogation tapes. But they also find an intruder, mysteriously changed recordings, and a dead body. Before long the Doctor realises that there is more going on than a simple break-in or murder. How can he defeat a creature that is made of pure sound? Written by Justin Richards. Directed by Gary Russell.