Episode list

In 18th Century coastal Italy, the local fishermen haul in an extraordinary catch: a gigantic serpent. The Doctor identifies it as an alien, but to the ailing locals this fabled sea creature has the capacity to heal them - if only Count Otto will share it with them. When Mrs Wibbsey comes under the influence of the Count, the Doctor finds himself snared by the wicked power of a seemingly immortal magician, the infamous Cagliostro.

"The Battle of the Somme is the pivotal moment of this conflict... History hinges on it!" It's the start of August 1916, and war is raging on the battlefields of France. In the front line trenches, British soldiers are vanishing without trace. Captain Mark Steadman witnesses one of his comrades being pulled down beneath the mud, and realises that something is terribly wrong. When three civilians and a large blue box arrive on the scene, Steadman finds himself helping in their enquiries. The Doctor declares that something has gone wrong with the timeline of the War; the Battle of the Somme should have already begun, yet there is no sign of it. He demands an audience with Field Marshal Haig. A crater in no-man's land reveals the grisly horror of the missing men's fate, and brings the Doctor and his friends into terrible danger. There are forces at work here which even he can't fully comprehend.

"Somewhere in this hospital there is a man, or a woman, who has been possessed by the raw energy of time." The year is 1914, and the Great War is just getting started. In a field hospital in Ypres, Belgium, Nurse Annie Grantham receives two visitors: a distinguished doctor and his administrative assistant, Miss Grant. They have many questions to ask of Annie, and of her distressed and wounded charges. The Doctor is returning to a scenario he encountered long ago: a version of the First World War where the Archduke Ferdinand wasn't murdered, leading to changes all along the subsequent timeline. He now suspects that someone is at large in 1914, intervening in events with some unknown purpose. What force is causing injured soldiers to disappear into the night? Does the answer to the mystery lie in Sarajevo, six months earlier, at the scene of that assassination attempt? With the help of the TARDIS, the Doctor and his friends are about to find out.

"You've seen what happens, Mark. You know what time can do if it's damaged." Travelling alone for once, the Sixth Doctor elects to return to Earth, and the First World War. There he must solve, once and for all, a mystery he unearthed in earlier incarnations. Someone has been interfering to alter the course of the war - but to what end? With Captain Mark Steadman and Nurse Annie Grantham, the Doctor travels to a forest in Germany, on a cold morning in November. At the heart of the forest is a massive temporal disturbance, and there he will rendezvous with whoever is behind significant changes to the accepted history of the Great War. But the forces of Time bring other entities to the meeting place: terrifying, corporeal ghosts of soldiers from many centuries of battle. If the Doctor, Mark and Annie are to escape with their lives - and return history to it proper course - they will need help from unexpected quarters.

Fleeing from the rising tide on a distant planet, the Doctor and his friends are attacked by a swarm of what appear to be tiny insects. Wracked by hallucinations, Jamie is transported back to his home in the Highlands, whilst Victoria sees her late father. The travellers meet the survivors of Elysian Fields, a travelling hospital that offers patients a choice between the Blade of Longing and the Angel of Forgetting. When next the spaceship lands, the TARDIS crew are offered the chance of a lifetime. For Victoria, the promise of meeting her father again proves too alluring to resist. But what terrible price must she pay, along with anyone else who makes a pact with Elysian Fields?

When the Doctor returns to Nest Cottage, in the village of Hexford, England, he discovers strange things afoot in the local woods. Together with the redoubtable Mrs Wibbsey he discovers the local postmistress in an almost desiccated state, and witnesses sinister behaviour at the local mini-mart. The old team investigate a new shop that has opened in the village, run by the glamorously beguiling Camilla Cookson. Soon they realise that a secret society has formed in Hexford under their very noses. But what role has Mrs Wibbsey herself unwittingly played in all of this? It may be time for a few confessions to be heard. Recruiting Mike Yates, Tish Madoc and Deirdre Whatsit to the cause, the Doctor and Mrs Wibbsey set out to penetrate the winged coven - but what they discover at its heart is the greatest horror of all.

It's the late 1890s, and newspaper journalist James MacFarlane is on the trail of a supernatural entity. He's joined in his investigations by a mysterious stranger, who calls himself the Doctor and professes to know a lot about vampires. As gangs of locals gather zombie-like on the city's streets, James and the Doctor find themselves on a dangerous trail to find the truth. What links the secretive Lord and Lady Elmhurst to local events? What strange force is luring ordinary men and women to a local quarry? The Doctor soon realises that the answers lie in his own past.

The TARDIS lands aboard the Sun God, a vast spaceship carrying executives from a powerful 35th Century energy company. Peri is menaced by deadly cat-like robots, whilst the Doctor discovers that Spalding Revere, the company's founder, has set the ship on course for the heart of a sun. Spalding's last wish is to take his acolytes with him to the afterlife, and unless the Doctor can intervene he and Peri will be going with them. Tensions and in-fighting grow among the staff. Peri meets Brian, whose half-man/half-insect body has a terrible significance to Spalding's plan. As the Sun God continues on its final mission, time is running out for them all.

The TARDIS brings its occupants to Calico Three, an Earth-like planetoid where industrial foundries are worked alongside sophisticated technology. The Doctor is staggered to learn about the Resurrection Plant, which re-births anyone mortally wounded in the line of work. While Jamie is put to work in the foundry, Zoe and the Doctor investigate the Plant - but when the machine goes terribly wrong, they must work with the locals to combat a horrifying monster. The Doctor also uncovers a shameful secret that, for him at least, hits close to home.

In 1890s Cardiff, reporter James MacFarlane is intrigued by rumours of 'anaesthesia frolics', at which gatherings the latest frontier in pain relief is demonstrated to influential guests. After he speaks to someone who attended several such 'frolics' - and left with a hand and two fingers missing - James realises that the events have a dark side. Contriving an invitation, he is astounded to find another guest also investigating - it's his old friend the Doctor. Reunited in mystery, the Doctor and James enter the murky underbelly of polite Cardiff society, where they uncover a shattering secret - and a monster lurking at its heart.

Indomitable reporter James MacFarlane has travelled to the remote MacReady Base near the South Pole, his mission to interview the famed explorer Pentius Rochdale. On arrival MacFarlane is astonished to discover that the base's new medical officer is none other than the Doctor. MacFarlane is intrigued by rumours of strange goings-on at the Base, whilst a recent attack on a neighbouring station - by creatures unknown - attracted the Doctor's attention. The two friends focus on Rochdale's expedition to find the legendary lost continent of Mu, which he believes may lie in Antarctica. When a series of grisly deaths disturb the Base's calm, the Doctor's suspicions are aroused. Whatever is preying on people, it's intelligent and has deadly claws and teeth. But by the time he and MacFarlane have uncovered the truth, they are well within biting distance of the teeth of ice.

An Escape room with a sting in its tail is the setting for the Doctor and Jo's latest encounter with a familiar enemy. Three young graduates and their tutor race against time to crack the codes, open the exit door, and obtain 'A New Life' - at least, that's what the publicity said. As the Doctor observes proceedings, he begins to suspect that something far more sinister lurks on the other side of the door. To make matters worse, the room appears set to eliminate anyone who doesn't make the grade. Working against time, the Doctor and Jo form an uneasy alliance with the gamers. What terror lies waiting for them all?

A visit to the Grand Canyon begins with disaster for the Doctor and Peri, when the TARDIS plunges into a ravine. The travellers' only hope is to descend to the valley on foot and then track the course of the Colorado river. Their perilous journey is fraught with danger, even before they encounter a band of 19th Century explorers led by Major John Wesley Powell. Joining the watery expedition, the Doctor and Peri begin to despair of ever seeing the TARDIS again. As food supplies dwindle, so do the group's options. This is a journey which some of them will never return.

When the TARDIS lands on Earth in the 1830s, Tegan is keen to explore Dickensian London. The grim realities of poverty and destitution are sobering, with conditions exacerbated by the New Poor Law. Yet something else is affecting those most in need - something not of this world. As the Doctor falls into the hands of the law, and Tegan and Nyssa are abducted by a brutish pair of ne'er-do-wells, Adric finds himself on an altogether different plane, at the heart of the malaise affecting the capital city. For the beings who have formed a deadly contract with the people of Earth, the presence of TARDIS travellers in London is inconvenient, to say the least.

The Doctor is working undercover in 1890s Galway whilst investigating the mysterious sinking of the RMS Majestic. Witnesses recall something huge crashing into the sea, causing a massive wave which overturned the ship. Could it have been the mythical sea creature known as the Dobhar-chu? Also on the scene is James MacFarlane, intrepid journalist and friend of the Doctor. Reunited, the pair discover death stalking the area in the form of animated corpses. The Doctor soon realises that aliens are present, and unless stopped their plans could kill everyone in County Connemara.

When a new state-of-the-art recycling plant opens in North-East London, pensioner Roger Turner is all for doing his bit. In return for donations of unwanted plastic, he and his friends get to see AN-X Recycling's exhibition of life-size human and animal mannequins. The Doctor and Ace are also visiting the plant, but their unauthorized snooping doesn't go down well with AN-X's strangely impassive operations managers and their boiler-suited staff, keen to protect the secret that lurks at the heart of the factory floor. When Roger is attacked by a terrifying human exhibit, he finds himself joining forces with the strange Doctor and his friend. Soon they're all fighting for their lives - and for the future of planet Earth.

On a radioactive moon on the outskirts of the Fourth Sector, the occupants of a besieged power station try desperately to hold the Daleks at bay. To this end they have apprehended a saboteur, spy, and traitor to the human race. His name is Steven Taylor. When the Doctor, Vicki and Steven first landed on the station, they little suspected the chain of events that would lead to Steven's arrest. Now he must convince a young nurse, Chayla, and the station's brutal Security Chief, Finn, that his intentions are honourable. But with every second wasted, the Daleks are gaining ground. With the Doctor and Vicki seemingly powerless in the TARDIS, Steven must prove once and for all that he is not an agent of the Daleks. Can anything be done to prevent the Doctor's old enemies totally exterminating everyone on the station?

The TARDIS materialises on a research station, locked in a state of temporal displacement on the surface of Volkoff Epsilon. The station's human crew are engaged in the study of a mysterious artefact they call 'the remnant'. Apparently a source of unlimited power, it could be the solution to Earth's energy problem. Yet the station's time barrier has become disrupted, leaving the crew confined with no way out. The Doctor realises that both he and Ace - and the TARDIS - are now also trapped by the time displacement. What is the secret of the tiny, spinning artefact? Why have half the base's personnel already disappeared? And what lurks in the shadows, threatening to overwhelm first Ace and then the whole of Earth?