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Doctor Who Season 20 Episodes
Season 20 Episode Guide
23 Episodes 1983 - 1983
Episode 1
Arc of Infinity: Part One
25 mins
On Gallifrey, someone on the High Council of the Time Lords is perpetrating a treasonous act - transmitting the Doctor's bio-extract data from the space/time Matrix to a mysterious anti-matter being they are in contact with. On Earth, two lads backpacking in Amsterdam spend the night sleeping in a crypt where they're attacked by an alien creature under the same anti-matter being's control.
Episode 2
Arc of Infinity: Part Two
25 mins
With an anti-matter being trying to enter the universe through the Doctor, risking the destruction of everything, there is only one clear course of action for the High Council of Time Lords to take: execute the Doctor. Meanwhile, Tegan arrives in Amsterdam and hear about what's become of her cousin from his unscathed friend.
Episode 3
Arc of Infinity: Part Three
25 mins
Something seemed amiss about the Doctor's execution, so the Castellan has Commander Maxil discreetly but fully look it. Meanwhile, as the Doctor meets the anti-matter being inside the Time Lord Matrix, Tegan and her cousin's friend run afoul of a bird-like alien back on Earth.
Episode 4
Arc of Infinity: Part Four
24 mins
The High Council creates a distraction so the Doctor and Nyssa can find Omega on Earth and prevent his reentry into our universe.
Episode 5
Snakedance: Part One
24 mins
The TARDIS lands on Manussa where Tegan once again gets possessed by the Mara, who plan to break into the physical world.
Episode 6
Snakedance: Part Two
25 mins
The Doctor talks to Ambril and Chela to try and stop the 500th anniversary celebrations. A possessed Tegan finds herself in Dugdale's Hall of Mirrors to where she summons Lon. The Doctor and Nyssa return to the caves.
Episode 7
Snakedance: Part Three
24 mins
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 get him out. Chela tells the Doctor tales of Dojjen.
Episode 8
Snakedance: Part Four
25 mins
Escaping from jail and rescued from execution by Tanha, the Doctor escapes to find Dojjen. Will he finally be able to defeat the Mara?
Episode 9
Mawdryn Undead: Part One
24 mins
In England in 1983, the Black Guardian strikes a deal with a young student named Turlough, who is secretly from another planet but stranded on Earth. He will return him to his home planet if Turlough will kill the Doctor for him. Meanwhile the Doctor, Tegan and Nyssa are near Turlough's school, trying to repair a hidden device that has the TARDIS trapped in perpetual orbit, when they run into an old friend of the Doctor's... twice. Can the Doctor avoid the machinations of both Turlough and a ship of mutated alien scientists while keeping two versions of his old friend The Brigadier from different time zones from meeting?
Episode 10
Mawdryn Undead: Part Two
25 mins
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, eventually to discover a badly injured man that may very well be the Doctor. Both parties also encounter former Doctor-companion Brigadier Lethbridge-Stewart, though in 1983 he curiously has no memory of the Doctor at all.
Episode 11
Mawdryn Undead: Part Three
25 mins
Danger and discovery await the Doctor back aboard the alien ship, where a modified piece of Time Lord technology awaits his discovery. The Black Guardian is pleased with the Doctor's return and uses Turlough to awaken the ship's undead inhabitants to lead the Doctor to his death. The one uniting factor for all is the unforeseen presence of two Brigadier Lethbridge-Stewarts aboard ship, which could put a sudden end to everyone's plans if they're not kept apart.
Episode 12
Mawdryn Undead: Part Four
25 mins
Mawdryn and his fellow immortals - stuck in ceaseless cycles of mutation and deterioration - are quite determined on the Doctor sacrificing his future for their sakes, giving him the choice between helping them or stranding Teagan and Nyssa with them on their infinite journey. The Doctor, however, seeks a third option.
Episode 13
Terminus: Part One
25 mins
Under the directives of the Black Guardian, sabotage by Turlough destabilizes the TARDIS, causing it to latch onto the nearest spaceship for physical support. Nyssa, trapped inside her dissolving room, crosses onto the other ship in order to survive, entering onto an eerily automated ship marked with painted skull decals just as it's being invading by raiders.
Episode 14
Terminus: Part Two
25 mins
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 colony at the exact center of the known universe. As they find their way around and investigate, Nyssa shows signs of contracting the disease.
Episode 15
Terminus: Part Three
25 mins
Since the Doctor's party represents neither lazars nor handlers, they're presumed to be investigators, which is enough to spark the disgruntled Valgard into challenging Eirak over leadership of the handlers. Meanwhile, as the giant, dog-like Garm takes a terrified Nyssa off for "treatment," Bor returns from the forbidden zone with interesting news about the ship.
Episode 16
Terminus: Part Four
25 mins
In attempting to reopen a doorway into the TARDIS, Turlough activates Terminus' automated fuel-jettisoning sequence. The first time this sequence was engaged, it flung its first of two massive loads of unstable fuel into the distant past, producing the Big Bang that created the universe. This second sequence - if the Doctor can't find a way to shut it down - will release a second massive load, the explosion of which will entirely negate the effects of the first.
Episode 17
Enlightenment: Part One
23 mins
When the White Guardian appears uttering a cryptic warning of imminent danger - "The winner takes all", the Doctor is puzzled. Then the TARDIS materializes on an old Edwardian sailing ship. Before long, however, he is amazed to discover that the ship, along with others, is sailing through space. The Doctor and his companions soon become caught up in a sailing race run by the mind-reading Eternals. The first prize is Enlightenment - ultimate wisdom to gain one's heart's desire, and some of the more devious crews will stop at nothing in order to claim it. But as the Black Guardian's evil mesh draws tight, it looks as though the Doctor might not live to cross the finishing line...
Episode 18
Enlightenment: Part Two
24 mins
Captain Striker and his officers reveal themselves to be Eternals, mind-reading creatures who live outside of time and who require Ephemerals (humans and other "time dwellers") to relieve them of their emptiness. They race against other Eternals for the grand prize of Enlightenment, by which to grant their deepest wishes. That can't be good for the universe, but how can the Doctor strategize against beings adept at reading his every thought?
Episode 19
Enlightenment: Part Three
25 mins
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 been picking off a few of her greatest rivals in the race and now sees an opportunity to clear the field once and for all and become the clear winner.
Episode 20
Enlightenment: Part Four
25 mins
Tegan isn't aware she been outfitted with a devise to destroy Captain Striker's ship. While the detonation will merely slip the indestructible Eternals back into the realm of eternity, nothing nearly so elegant or as tidy awaits the Ephemerals aboard the ship.
Episode 21
The King's Demons: Part One
25 mins
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, when the TARDIS appears. The Doctor, Turlough and Tegan are immediately hailed as demons and welcomed warmly by the King. Something is wrong with this picture, observes the Doctor.
Episode 22
The King's Demons: Part Two
25 mins
With The Master revealed, two questions remain: Who is impersonating King John and why?
Episode 23
The Five Doctors
Wed, Nov 23, 198390 mins
In this feature-length twentieth anniversary special in the classic science fiction-fantasy series, someone uses a time scoop to lift all five incarnations of the heroic Time Lord known as the Doctor out of their respective time streams. The elderly, first Doctor is taken out of Wimbledon Garden. The Beatle-haired, Chaplainesque, second Doctor is removed from the grounds of UNIT H.Q.. The dashing, dandy, white-haired, James Bond-like third Doctor is scooped off of Earth in his Edwardian speedster car, Bessie. The curly-haired, tall, long-scarfed fourth Doctor is lifted out of a punt on the river Cambridge and trapped in a time vortex. And the youthful, striped-panted fifth Doctor must find all of his former selves and return them to their proper time streams, or face disintegration into the time vortex in which his fourth incarnation is trapped. Having abducted each of the Doctors, the mysterious agent responsible for this transgression of the First Law of Time, positions four of the Doctors, along with some of their companions and foes, inside the Death Zone on Gallifrey, home world of the Time Lords.
