Episode guide - 6th Doctor

Series 21 (continued)

1. The Twin Dilemma - In a post-regenerative crisis, the Doctor takes Peri to the desolate asteroid Titan 3, planning to stay there as a hermit for 1000 years. However, he is soon drawn into a plot to conquer the galaxy by a race of giant Gastropods.

Series 22

1. Attack of the Cybermen - The Doctor & Peri encounter Lytton, stranded on planet Earth and in the employ of the Cybermen. A plot is being hatched and the Doctor finds himself on an alien planet he has visited before as he tries to defeat his enemies and work out who he can trust to help him.
2. Vengeance of Varos - The Doctor & Peri are forced to land on the planet of Varos in search of ore for the TARDIS. But the colony is a former prison and lives off entertainment from torture and execution. And the Doctor might be next on the listings…
3. The Mark of the Rani - The Doctor finds himself facing two Time Lord enemies: his old adversary the Master, and the Rani. The local population are turning violent and unpredictable and the Doctor must work out what exactly is causing all the problems.
4. The Two Doctors - The 2nd Doctor & Jamie are on a mission for the Time Lords that goes horribly wrong, and Jamie sees the Doctor being tortured to death. However, if the Doctor died in his second incarnation, what does that mean for the 6th Doctor & Peri?
5. Timelash - On the planet Karfel the Doctor and Peri, together with a young man named Herbert, become entangled with the machinations of the despotic Borad.
6. Revelation of the Daleks - The Doctor and Peri encounter the Daleks on the planet Necros, where the mercenary Orcini is on a mission to kill Davros.
   

Series 23 - Trial of a TimeLord

The Doctor is summoned to a Gallifreyan space station to face trial; accused of "conduct unbecoming a Time Lord". The prosecution is presented by the Valeyard and the judge and jury are all Time Lords.

The Mysterious Planet
The Valeyard's first piece of evidence against the Doctor concerns events on the planet Ravalox.

The Doctor and Peri decide to visit the planet Ravalox to fulfil the Doctor's curiosity about its apparent destruction. But very soon, they find out that Ravalox hides a secret… Not only are a group of dwellers living in what looks suspiciously like a circa 1980s London Underground Station, but there are also two rogues named Sabalom Glitz and Dibber, seemingly out to make a quick Grotzit or three, and the Tribe of the Free to deal with. And exactly what is it that the L3 Service Robot Drathro is so keen to hide?

Mindwarp - Presenting more evidence of the Doctor's crimes, the Valeyard now shows the events of Thoros Beta, where the Mentors are performing experiments that could affect the future life of all living things in the universe..

Terror of the Vervoids - It is now the Doctor's chance to provide evidnece for his defence. He produces the events on the Hyperion III to the trial, but has the Valeyard managed to corrupt the Matrix to show events in a different light?

An undercover agent working aboard the space liner Hyperion III, contacts the Doctor and asks for assistance to help crack the case of a group of scientists carrying out experiments with mixing human DNA with plant based life. The Doctor and his companion Mel respond, only to find that the Captain of the liner is an old friend and that their contact has been killed. While Mel searches for clues as to the perpetrator of the crime, the Doctor takes the opportunity to lose a little weight in the Hyperion III gym ...

The Ultimate Foe - With the arrival of the Master, events at the Trial break down into chaos. The Master reveals the true identity of the Valeyard to the Time Lords - A future incarnation of the Doctor that is evil. The Valeyard escapes into the Matrix and creates a deadly fictional world. The Doctor pursues him into this world and they battle it out for the fate of the Doctor's remaining regenerations.