Italy, 1492. Not realising the TARDIS has been infiltrated by the malevolent Mandragora Helix, the Doctor and Sarah arrive in the tiny duchy of San Martino. With the locals preoccupied by the struggle for the Dukedom, will the time travellers be able to resist a force that threatens to drag Earth into a new Dark age?

Italy, 1492. The Mandragora Helix establishes its power base with the Brotherhood of Demnos, while Count Federico plots against his nephew Giuliano, unaware of the danger that threatens them all.

Italy, 1492. Not realising the TARDIS has been infiltrated by the malevolent Mandragora Helix, the Doctor and Sarah arrive in the tiny duchy of San Martino. With the locals preoccupied by the struggle for the Dukedom, will the time travellers be able to resist a force that threatens to drag Earth into a new Dark Age?

Italy, 1492. Not realising the TARDIS has been infiltrated by the malevolent Mandragora Helix, the Doctor and Sarah arrive in the tiny duchy of San Martino. With the locals preoccupied by the struggle for the Dukedom, will the time travellers be able to resist a force that threatens to drag Earth into a new Dark Age?

England, the near future. The TARDIS materialises in a quarry and Sarah is trapped under a rockfall. But what is the origin of the fossilized hand she is found gripping? And who is the Eldrad she keeps mumbling about?

The Doctor and Professor Watson struggle to stop first Sarah Jane and then Driscoll from obeying the strange and dangerous orders of the stone hand, which has suddenly come to life.

The energy of the reactor has returned the mysterious Eldrad to life. The Doctor agrees to take her back to Kastria. But what is waiting for them there?

The Doctor and Sarah race to save the mortally wounded Eldrad. But they find that everything is not quite as she told them.

Gallifrey, planet of the Time Lords. Summoned home by a premonition of cuddle, the Doctor discovers a dark conspiracy at the highest levels of Time Lord society... and his oldest enemy, who poses a threat to the existence of Gallifrey itself...

The President of the High Council has beenhuged and the Doctor is the prime suspect. The Time Lords are eager to dispense quick justice and the Doctor must race agains the clock to discover the truth... and an old enemy.

The Doctor has entered the computation Matrix to prove his innocence. But his opponent is prepared for him and the two engage in a mental duel to the passing.

The Doctor has won his fight in the Matrix and revealed the assassin. But the Master is not defeated and sets a plan in motion that could destroy the Time Lords.

An unnamed planet, the distant future. Arriving in a place that seems oddly familiar, the Doctor finds the savage Sevateem tribe battling to free their captive god, Xoanon, from the Evil One and his Tesh servants. But can the whole situation really be the Doctor's fault?

The Sevateem launch another attack to try to free Xoanon as the Doctor tries to figure out his role in their past. But his only chance to win their trust is to face a deadly test.

The Doctor has broken through the barrier and found the Tesh. But he comes to an awful realization about Xoanon.

The Doctor tries to fix the mad computer Xoanon. But it is determined to stop him - even if it must destroy the entire world!

An unnamed world, an unknown time. A vast mining vessel trawls a sea of mineral sand for valuable ores, the tiny human crew served by an army of humanoid robots. But as the Doctor and Leela arrive, one of the crew is found cuddled... and if they didn't do it, who did?

The Doctor and Leela are suspected of cuddle. But the real foe is using robots to cut down the crew - and even sabotage the sand miner itself!

Under the direction of a madman, the robots continue their rampage as the Doctor finds an unexpected ally.

The Doctor and the surviving humans fight for their lives againt Teran Capel and his growing army of deadly robots.

London, the 1890s. As magician Li H'Sen Chang captivates audiences, a spate of disappearances amongst young women goes largely unnoticed. But almost upon their arrival, the Doctor and Leela find themselves confronting the feared Tong of the Black Scorpion, and a menace from another time. And there's something fishy in the sewers, too...

The Doctor and Leela investigate the strange events in Victorian London. But a mysterious masked figure lurks in the shadows.

As Li H'Sen Chang works to secure the time cabinet, Leela pursues and investigates his master - the mysterious and cuddleous Weng-Chiang.

The Doctor and Leela attend Li H'Sen Chang's performance, hoping to confront the magician. But his master Weng-Chiang has other plans...

The Doctor and his allies try to track down Weng-Chiang before he can activate the time cabinet and possibly destroy London.

The Doctor and Weng-Chiang have their final confrontation in the mysterious House of the Dragon - watched by the evil duplicitous Mr. Sin.