E1 • Arc of Infinity: Part 1

1. 24 min
2. TV-G
3. CC

On Gallifrey the Doctor has been chosen, during a clandestine meeting, to be used to perpetrate a terrible act. Unaware, the Doctor and Nyssa trace something odd to Amsterdam.

E2 • Arc of Infinity: Part 2

1. 24 min
2. TV-G
3. CC

Commander Maxil doesn’t believe the Doctor is innocent and reckons the easiest way to stop the evil being reborn on Gallifrey would be to kill him before the bonding can occur.

E3 • Arc of Infinity: Part 3

1. 24 min
2. TV-G
3. CC

President Borusa thinks the creature has been defeated but within the Matrix, the Doctor unmasks Omega and realises the threat to the matter universe is far from over.

E4 • Arc of Infinity: Part 4

1. 24 min
2. TV-G
3. CC

Omega has been reborn in Amsterdam in the Doctor's form, but the transference hasn’t worked. The Doctor pursues him through the city, aware Omega is now a walking anti-matter bomb.

E5 • Snakedance: Part 1

1. 24 min
2. TV-G
3. CC

The Mara is returning home, to the planet Manussa, five hundred years after being exiled. And it is using Tegan's subconscious to get there in the TARDIS.

E6 • Snakedance: Part 2

1. 24 min
2. TV-G
3. CC

As Tegan tries to rid her mind of the Mara forever, the Doctor learns about the Little Mind’s Eye crystal, while coping with the local politics of the Federator.

E7 • Snakedance: Part 3

1. 24 min
2. TV-G
3. CC

As Tegan and Lon combine to give the Mara access back to reality, the Doctor locates the Great Mind’s Eye crystal but realises it is instrumental in the Mara's plan.

E8 • Snakedance: Part 4

1. 24 min
2. TV-G
3. CC

The Doctor and the original snakedancer Dojeen work to rid the planet of the malign Mara once and for all, but it has the whole of Manussa in its psychic grip now.

E9 • Mawdryn Undead: Part 1

1. 24 min
2. TV-G
3. CC

Caught in a warp ellipse, the TARDIS is drawn to a huge spacecraft orbiting Earth whereupon the Doctor is separated in space and time from Nyssa and Tegan.

E10 • Mawdryn Undead: Part 2

1. 24 min
2. TV-G
3. CC

At Brendon School, the Doctor enlists the help of the Brigadier. At Brendon School, Tegan enlists the help of the Brigadier. Same man, different time periods, however.

E11 • Mawdryn Undead: Part 3

1. 24 min
2. TV-G
3. CC

Mawdryn and his eternal mutants are awake and reveal the truth, they are exiles, they are in pain and need something only the Doctor can give them. His future lives.

E12 • Mawdryn Undead: Part 4

1. 24 min
2. TV-G
3. CC

As the Doctor’s ethics are challenged and the two Brigadier's finally meet, Turlough plots with the Black Guardian to bring the Time Lord down once and for all.

E13 • Terminus: Part 1

1. 24 min
2. TV-G
3. CC

Turlough sabotages the TARDIS causing it to fuse with the space station Terminus. Trying to separate the two, the Doctor encounters a couple of space pirates.

E14 • Terminus: Part 2

1. 24 min
2. TV-G
3. CC

While the other Vanir sought out their hydromel, the curious Bor took a journey to try and solve the mystery at the heart of Terminus itself. And now he knows the secrets…

E15 • Terminus: Part 3

1. 24 min
2. TV-G
3. CC

Trapped with the Lazars, Nyssa to find a way to help them, while the Doctor and Kari find the original pilot of Terminus and realise his mistake is about to be repeated...

E16 • Terminus: Part 4

1. 24 min
2. TV-G
3. CC

The Garm and the pirates stop Terminus setting off a second Big Bang, while the Vanir fight between themselves for their future. Meanwhile Nyssa makes a monumental decision...

E17 • Enlightenment: Part 1

1. 24 min
2. TV-G
3. CC

The TARDIS’s power is drained away just as the Doctor receives a dire warning from the White Guardian, and before long finds himself drawn into a strange race throgh the stars.

E18 • Enlightenment: Part 2

1. 24 min
2. TV-G
3. CC

While Tegan has to cope with the unwelcome attention of Marriner, the Doctor realises that Striker and his officers are Eternals and that the human crew mean nothing to them.

E19 • Enlightenment: Part 3

1. 24 min
2. TV-G
3. CC

Captain Wrack manipulates Turlough, because she is also working for the Black Guardian and during an Eternals party she places a bomb aboard Striker’s ship.

E20 • Enlightenment: Part 4

1. 24 min
2. TV-G
3. CC

The race for the Enlightenment is over and a winner has been crowned. But Turlough must make a decision and it’s one the Doctor and Tegan cannot help him with.

E21 • The King's Demons: Part 1

1. 24 min
2. TV-G
3. CC

At a medieval joust between Frenchman Sir Gilles and Hugh Fitzwilliam, the TARDIS appears. King John seems more curious than alarmed, as is Sir Gilles.

E22 • The King's Demons: Part 2

1. 24 min
2. TV-G
3. CC

The Master and the Doctor fight for control over Kamelion’s mind while Turlough and Tegan make new allies in the castle in an attempt to avoid the iron maiden.

E23 • The Five Doctors

1. 90 min
2. TV-PG
3. CC

The Doctor returns to Gallifrey only to discover that a deadly game banned and derelict for centuries, has been reactivated. Soon he finds his other selves have also been summoned to assist him in tracing the culprit and tracking down the secret Rassilon.