Doctor Who - Season 20

Structurally, the season retread season 18's formula of including a trilogy of stories bound together by an overarching theme. In this instance, the tripartite tale involved Turlough's attempts to kill the Doctor at the behest of the Black Guardian.

22 Episodes

Arc of Infinity (1)

Season 20 - Episode 1

On Gallifrey, someone on the high council is perpetrating a treasonous act - transmitting the Doctor's bio-extract from the space/time matri...

Arc of Infinity (2)

Season 20 - Episode 2

With an anti-matter being trying to enter the universe through the Doctor, risking the destruction of everything, there is only one clear co...

Arc of Infinity (3)

Season 20 - Episode 3

Something seemed amiss about the Doctor's execution, so the Castellan has Commander Maxil discreetly but fully look it. Meanwhile, as the Do...

Arc of Infinity (4)

Season 20 - Episode 4

The High Council creates a distraction so the Doctor and Nyssa can find Omega on Earth and prevent his reentry into our universe.

Snakedance (1)

Season 20 - Episode 5

Tegan steers the TARDIS to the planet Manussa, without meaning to - but why? And is it a coincidence that the planet is about to celebrate t...

Snakedance (2)

Season 20 - Episode 6

The Doctor talks to Ambril and Chela to try and stop the 500th anniversary celebrations. A possessed Tegan finds herself in Dugdale's Hall o...

Snakedance (3)

Season 20 - Episode 7

The possessed Tegan and Lon try to find the whereabouts of the Great Crystal. The Doctor finds himself in prison, with only Nyssa to try and...

Snakedance (4)

Season 20 - Episode 8

The Doctor and the original snakedancer Dojjen work to rid the planet of the Mara.

Mawdryn Undead (1)

Season 20 - Episode 9

The Doctor discovers a starship trapped in a time warp over Earth. Meanwhile, public schoolboy - and secret alien émigré, Turlough, learns h...

Mawdryn Undead (2)

Season 20 - Episode 10

The TARDIS lands on Earth six years out of date, stranding the Doctor in 1983 while leaving Tegan and Nyssa to look for him in 1977. Both pa...

Mawdryn Undead (3)

Season 20 - Episode 11

Mawdryn and his eternal mutants reveal the truth: they are exiles, they are in pain and need the Doctor's future 'lives', as afforded by eac...

Mawdryn Undead (4)

Season 20 - Episode 12

As the Doctor's ethics are challenged and the two Brigadiers finally meet, Turlough plots with the Black Guardian to bring the Time Lord dow...

Terminus (1)

Season 20 - Episode 13

Deep space, some time in the future. Still following the Black Guardian's orders, Turlough sabotages the TARDIS, forcing an emergency fusion...

Terminus (2)

Season 20 - Episode 14

The Doctor's party remains divided and scattered as the immense transport docks at the Terminus space station, which turns out to be a leper...

Terminus (3)

Season 20 - Episode 15

Since the Doctor's party represents neither lazars nor handlers, they're presumed to be investigators, which is enough to spark the disgrunt...

Terminus (4)

Season 20 - Episode 16

In attempting to reopen a doorway into the TARDIS, Turlough activates Terminus' automated fuel-jettisoning sequence. The first time this seq...

Enlightenment (1)

Season 20 - Episode 17

After receiving a warning from the White Guardian, the Doctor initially believes the TARDIS has landed aboard an Edwardian clipper ship - bu...

Enlightenment (2)

Season 20 - Episode 18

Captain Striker and his officers reveal themselves to be Eternals, mind-reading creatures who live outside of time and who require Ephemeral...

Enlightenment (3)

Season 20 - Episode 19

Turlough's panic puts him aboard a pirate ship where Captain Wrack uses his presence to invite all the other captains over for dinner. She's...

Enlightenment (4)

Season 20 - Episode 20

Tegan isn't aware she been outfitted with a device to destroy Captain Striker's ship. While the detonation will merely slip the indestructib...

The King's Demons (1)

Season 20 - Episode 21

In 1215 at the castle of Ranulf Fitzwilliam, son Hugh is jousting on a matter of honor against Sir Gillis Estram, the champion of King John,...

The King's Demons (2)

Season 20 - Episode 22

England, 1215. With the historic signing of the Magna Carta supposedly only days away, the Doctor is startled to find King John apparently i...