Time in reverse."While investigating a temporal anomaly in Central London, the Doctor and Jo Grant meet Professor Harold Saunders, a man who possesses an unstable alien artefact, and who is seemingly haunted by the ghosts of dolls.Who is the mysterious Mrs Killebrew? Why is a pack of hounds hunting them in reverse? And can Jo pick up any bargains while backwards shopping on Oxford Street?

    Iris Wildthyme.Confronted with memories she knew nothing about, Jo agrees to a meeting with Iris inside her transdimensional bus, and together the three of them take a trip back in time. Back to the 1970s, to UNIT HQ, and a meeting with the only person who knows the whole truth...

    are drawn to the scene to investigate. Soon Liz discovers a potential alien invasion that will have far-reaching effects on her life… and the Doctor is unexpectedly reunited with an old enemy…

    His name is Zarl, and he's a fish of utmost evil. Zarl is going to steal all the water of Earth and sell it to the highest bidder. Or blow up the San Andreas fault. Or the planet. Or something like that. He's a bit vague on that point. Fortunately, to stop him there’s help from an unexpected source: a future version of Peri. She knows Zarl's dark secret. But should the future Peri be on Earth at all? Something smells fishy – and it's not just Zarl.

    What happened in the year 1688, when the TARDIS landed in London, and the Doctor, Jamie and Zoe were welcomed into the court of King James II.It was the year of the Glorious Revolution. And the birth of a whole new history…

    The mysterious owner wants to play games. He's the Celestial Toymaker, and he has already defeated the Doctor, whose essence is hidden inside a ventriloquist's doll.The Doctor is gone. The TARDIS is lost. But the game is only just beginning...

    The TARDIS, with the Doctor, Susan, Ian and Barbara aboard, is drawn out of the Vortex and lands aboard the Earth Benchmarking Vessel Nevermore, where Captain Rostrum is navigating by punching holes in the very fabric of space. The Doctor is appalled by this act of vandalism, and fearful that it could unleash monsters from the dark dimensions.As the benchmarking holes begin to fray, the fate of the universe is at stake. And while the Doctor contemplates a terrible sacrifice, Susan befriends the Nevermore's First Mate — someone she will remember for the rest of her life...

    Called to help when a friend falls ill, how can Lethbridge-Stewart fight an enemy that can breach every defence?

    but why remember their murder investigation now?

    But the TARDIS is lost to them — along with both Susan and Barbara — and Ian makes an enemy of the ship's chief scientist Joseph Banks.Why is Banks acting strangely? Could it be that the travellers are not the only visitors from the stars...

    and it may cost Jago's life.CastColin Baker (The Doctor), Christopher Benjamin (Henry Gordon Jago), Trevor Baxter (Professor George Litefoot), Philip Pope (John White), Ramon Tikaram (Wanchese), Mark Lockyer (Sir Walter Raleigh), Emerald O'Hanrahan (Eleanor Dare)

    Strange things have been happening at the isolated Abbey of Kells: disembodied voices, unexplained disappearances, sudden death. The monks whisper of imps and demons. Could the Lord of the Dead himself be stalking these hallowed cloisters?The Doctor and his companion find themselves in the midst of a medieval mystery. At its heart is a book: perhaps the most important book in the world. The Great Gospel of Columkille. The Liber Columbae.

    It's what happens when acquisitive minds are left unencumbered by conscience.'The Doctor, Romana and newly elected President Sheridan Moorkurk take on the all-consuming powers of business tycoon Cuthbert and his vast Conglomerate. But the situation goes beyond a struggle for political power. Cuthbert is intent on revenge on creatures he feels have attacked his interests. But when his revenge looks like leading to inter-species war, the Doctor knows the stakes couldn't be higher.The Laan are on the move. Is it too late to prevent the destruction of all life on Earth?

    Transported aboard the Time Lords' orbiting courtroom, the Doctor once again encounters the Valeyard, an amalgamation of the darker sides of his nature. This time, however, the Doctor isn't in the dock. This time, the Valeyard is the defendant, accused of a crime so terrible that the presiding Inquisitor is forbidden to reveal it even to the court, nor even to his counsel for the defence… the Doctor.If the Valeyard is found guilty, he'll be executed. Execute the Valeyard, and the secret of his origins dies with him. A secret that the Doctor is desperate to know… and which the Time Lords will stop at nothing to protect.

    A moment's carelessness could cause the star to collapse – and the deaths of billions.Watched over by liquid guards, the Mercurials, the Doctor's only company at the heart of the sun is his assistant 'Daphne' – the latest in a line of android helpers. But rebel eyes have their eyes on the sun, and its lonely controller – and are prepared to risk even a galactic cataclysm to secure the Doctor's release...