The Three Doctors
UNIT is called in by a radio astronomer whose studies have turned up distinctly unearthly results of late, but even the Doctor can’t imagine the magnitude of the threat. Somewhere within a black hole, a gateway to an antimatter universe, a malevolent being seeks one of his own race to assume his place as the master of a doomed world – and locates a fellow Time Lord on Earth. When the Doctor realizes the nature of the threat, he sends a distress call to the Time Lords, but their power source is also being drained by the black hole, and they can spare no help – aside from sending the Doctor’s earlier incarnations into his own present. The first Doctor is trapped in a time eddy, barely able to contact his future selves, who travel into the black hole – along with Jo, the Brigadier, and Sergeant Benton – to defy the wrath of Omega…the first Time Lord himself.
Season 10 Regular Cast: Jon Pertwee (The Doctor), Katy Manning (Jo Grant)
written by Bob Baker & Dave Martin
directed by Lennie Mayne
music by Dudley SimpsonGuest Cast: Patrick Troughton (The Doctor), William Hartnell (The Doctor), Nicholas Courtney (Brigadier Lethbridge-Stewart), John Levene (Sergeant Benton), Stephen Thorne (Omega), Graham Leaman, Tony Lang, Lincoln Wright, Richard Orme, Peter Evans (Time Lords), Clyde Pollitt (Chancellor), Roy Purcell (President), Laurie Webb (Ollis), Patricia Pryor (Mrs. Ollis), Rex Robinson (Dr. Tyler), Denys Palmer (Palmer), Alan Chuntz (Omega’s champion), Cy Town, Ricky Newby, John Scott Martin, Murphy Grumbar (Gell-guards)
Broadcast from December 30, 1972 through January 20, 1973
LogBook entry & review by Earl Green
The seventh Doctor is drawn to a jungle world, where he rescues a hapless bystander and discovers an elderly couple nearby. The couple have a unique relationship based on a mutual loathing that seems like it could become murderous at any moment – and they both have very dark secrets to hide. The fifth Doctor, meanwhile, finds himself locked out of the TARDIS, which has materialized aboard a doomed British ship in the North Atlantic. The ship is torpedoed by a German U-boat, and the TARDIS is lost at sea. The Doctor, along with an Irish woman from the British vessel, drifts along with the debris until taken aboard the German sub as a spy. Elsewhere, on the starliner Edifice, the sixth Doctor’s TARDIS arrives, coinciding with an experiment being performed on a time-sensitive creature known as the Temperon. But shortly after the experiment fails, the entire crew – with the exception of its android helmsman and a waitress who appears to have survived through pure luck – is killed, and the Doctor must find out why. Each incarnation of the Doctor is unaware that he is facing the same threat, but in different places and times. And each Doctor has a piece of the puzzle that could save their besieged home planet of Gallifrey.
Imbued with the energy of anti-time and possessed by the power-mad Zagreus, the Doctor wrestles for self-control and terrifies Charley into hiding within the TARDIS. A familiar face appears to Charley as she hides – the Brigadier, or, more precisely, a TARDIS-projected simulation of Lethbridge-Stewart intended to help her. Its method of doing so, however, is unorthodox to put it mildly: Charley must divine the true nature of the increasingly disastrous situation from a series of metaphors, ranging from her own childhood to a visit to Gallifrey’s past to an insane amusement park where animatronic cartoon characters are slaughtering one another. The Doctor, too, hears from some familiar voices in his own past, coaxing him to regain control of his own mind. But all too late, the Doctor realizes that his body and soul are not Zagreus’ only battleground, and the real battle for the fate of the entire universe is only now being joined.
The fifth Doctor visits a Jariden space station where that race is conducting surprisingly advanced experiments in time travel. But the Doctor isn’t the only one with a keen interest in these experiments: a fleet of Dalek ships moves in, and an invasion force boards the station, demanding access to the contents of a sealed vault. And one of the Jaridens, Colonel Ulrik, intends to help the Daleks retrieve what’s in the vault, despite the wishes of his sister, who happens to be the station’s lead scientist. Someone identifying himself only as another Time Lord contacts the Doctor and offers hints of how to resolve the situation, but not any actual help. The sixth Doctor encounters the battle-scarred Colonel Ulrik – at an earlier point in his history – during the bloody battle of Pejorica, in which the Daleks decimated the Jariden species. It seems that the Doctor is pushing Ulric and his race toward a major evolutionary turning point that could help in their struggle against Dalek oppression. The seventh Doctor pays a visit to Michael Faraday, only to find that Ulrik is here as well, followed by a small squadron of Daleks. The small battle that plays out before Faraday’s eyes is almost too much for one of human science’s greatest visionaries. And the eighth Doctor visits the Jariden space station, gently manipulating Ulrik and the fifth Doctor’s actions – and therefore those of his other previous selves – to ensure that the tide of history doesn’t turn to favor the Daleks.
Notes: The War Council shouldn’t be surprised at all that the Doctor can access the Omega Archives; his seventh incarnation was shown to be in possession of Time Lord superweapons that had presumably been with him for quite some time (
(1975), though they have reappeared in novels and numerous times in the eighth Doctor’s audio adventures, and even have their own action figure – not bad for a one-off villain.
established in the Brigadier’s final televised appearance, in the Sarah Jane Adventures two-parter 
televised Doctor Who in a very long time; the exact nature of his character is left extremely vague.