Doctor Who - Season 21

The Twin Dilemma, the first story with Colin Baker as the Sixth Doctor, aired last in the season. This season saw the departure of companions Tegan, Turlough and Kamelion and introduced Peri. Most episodes were the traditional twenty-five minute length. However, due to coverage of the 1984 Winter Olympics, Resurrection of the Daleks was re-edited before airing and shown as two forty-five minute episodes.

24 Episodes

Warriors of the Deep (1)

Season 21 - Episode 1

Earth's ocean floor, 2084. With two superpowers poised on the brink of a devastating photonic war, a missile base comes under attack from th...

Warriors of the Deep (2)

Season 21 - Episode 2

Just as the Doctor gains a tentative trust from the humans, a Silurian battle cruiser approaches. The Doctor warns Commander Vorsha to hold ...

Warriors of the Deep (3)

Season 21 - Episode 3

As Vorshak's crew are cut down by Sauvix's Sea Devil Warriors, the Doctor is running out of ways to broker a peace between the opposing spec...

Warriors of the Deep (4)

Season 21 - Episode 4

With Silurians in control of the base, Icthar reveals his plan for a final solution to Earth's human problem, which presents the Doctor a gr...

The Awakening (1)

Season 21 - Episode 5

The sleepy English village of Little Hodcombe, 1984. The village re-enactment of the English Civil War is in full swing, but a malign alien ...

The Awakening (2)

Season 21 - Episode 6

The Malus, an alien that's purely evil, needs the civil war re-enactments to become authentic so it can feed off the psychic energy of dying...

Frontios (1)

Season 21 - Episode 7

The planet Frontios, in the distant future. Following Earth's destruction, a tiny colony struggles to eke out a life on this desolate world....

Frontios (2)

Season 21 - Episode 8

Following the destruction of the TARDIS, the only part of it left is the hat stand. So Turlough uses it as a weapon! Plantagenet gets swallo...

Frontios (3)

Season 21 - Episode 9

Trying to rescue the Doctor from the Tractator's trap, Tegan lands them both in even more trouble. Turlough goes a bit mad, and reckons he k...

Frontios (4)

Season 21 - Episode 10

The Doctor tries to deal with the Tractator's cunning plan, despite Turlough's best intervention. They discover the splintered TARDIS in the...

Resurrection of the Daleks (1)

Season 21 - Episode 11

London's Docklands, 1984. Why are uniformed policemen gunning down strangely-dressed vagrants in broad daylight? A prison ship in the far fu...

Resurrection of the Daleks (2)

Season 21 - Episode 12

As the surviving station crew work to destroy the space station, Davros consolidates his power and the Daleks launch a fiendish scheme to us...

Planet of Fire (1)

Season 21 - Episode 13

Lanzarote, 1985. Archaeologist Howard Foster raises a strange metal artefact from the sea floor. But how is it linked to the signal the TARD...

Planet of Fire (2)

Season 21 - Episode 14

While the Master, victim of his own attempt to improve his TCE weapon, seeks restoration through Sarn's numismaton gas, the truth of Turloug...

Planet of Fire (3)

Season 21 - Episode 15

Sarn prophesy foretells of an outsider who will come to aid the people. It's a role the Master is more than delighted to fill, which finally...

Planet of Fire (4)

Season 21 - Episode 16

While the Master, victim of his own attempt to improve his TCE weapon, seeks restoration through Sarn's numismaton gas, the truth of Turloug...

The Caves of Androzani (1)

Season 21 - Episode 17

The planet Androzani Minor, the distant future. In the planet's caves war rages between government troops and the android warriors of the my...

The Caves of Androzani (2)

Season 21 - Episode 18

The Doctor and Peri have been rescued from the firing squad by the mysterious Sharaz Jek. But he has his own plans for them. And why are the...

The Caves of Androzani (3)

Season 21 - Episode 19

The situation on Androzani Minor is building toward a violent confrontation, and the Doctor and Peri are slowly succumbing to spectrox toxem...

The Caves of Androzani (4)

Season 21 - Episode 20

Events on Androzani reach a bloody climax. Will the Doctor and Peri survive the carnage? And at what cost?

The Twin Dilemma (1)

Season 21 - Episode 21

Earth, the future. The genius Sylvest twins, child prodigies, are kidnapped by the mysterious Professor Edgeworth and taken to the planet Ja...

The Twin Dilemma (2)

Season 21 - Episode 22

The Doctor takes Peri to Titan 3, a desolate hunk of rock in space where he hopes to find some solitude for a while. Instead he finds the lo...

The Twin Dilemma (3)

Season 21 - Episode 23

The Doctor arrives on Jaconda, once lush and green, to find it completely devastated by giant gastropods. Old legends about the planet's hal...

The Twin Dilemma (4)

Season 21 - Episode 24

The Doctor and Edgeworth deduce that the real plan of Mestor, the gastropod ruler of Jaconda, will not only destroy Jaconda but lead to the ...