[[WMG:[[center:[-''[[Series/DoctorWho Doctor Who]]'' [[Recap/DoctorWho recap index]]\\
'''Third Doctor Era'''\\
'''Season 7:''' [[Recap/DoctorWhoS7E1SpearheadFromSpace 1]] | '''2''' | [[Recap/DoctorWhoS7E3TheAmbassadorsOfDeath 3]] | [[Recap/DoctorWhoS7E4Inferno 4]]\\
'''[[Recap/DoctorWhoS6E1TheDominators <<< Season 6]]''' | '''[[Recap/DoctorWhoS8E1TerrorOfTheAutons Season 8 >>>]]''']]-]]]
!Doctor Who and the Silurians
[[quoteright:320:https://static.tvtropes.org/pmwiki/pub/images/st--3b19_7733.jpg]]
[[caption-width-right:320:"Who is this '[[Creator/JonPertwee Pertwee]]' guy? ''[[ActorAllusion I was promised]] [[Film/DrWhoAndTheDaleks Peter]] [[Creator/PeterCushing Cushing]]!''"]]
->Written by Creator/MalcolmHulke\\
Directed by Timothy Combe\\
'''Production code:''' BBB\\
'''Air dates:''' 31 January - 14 March 1970\\
'''Number of episodes:''' 7

->'''Elder Silurian:''' I have decided that it is possible for the two species to live together on this planet.\\
'''Young Silurian:''' This planet is ours!\\
'''Elder Silurian:''' This other species has developed its own civilisation. We must accept them as equals.\\
'''Young Silurian:''' I disagree! We must destroy them!

JustForFun/TheOneWith the botched title.
----

The Brigadier sends for the Doctor and Liz to take a look at an underground laboratory working on a new kind of nuclear reactor. They're getting odd power losses, a bizarrely high level of stress-related illnesses among the staff, and a background music composer with an inexplicable kazoo obsession.

The Doctor investigates while Liz spends most of the story just sort of standing there, and they discover that a neighbouring cave system is the base for a group of intelligent reptilian bipeds which are (inaccurately, as it turns out) named "Silurians" from the geological period from which they date. They have been in hibernation for millions of years, but the power and heat from the new reactor have reactivated them, and they now wish to emerge and reclaim "their" world from the mammals.

The Doctor tries to broker peace and gains the trust of the Silurian leader, but the leader's rebellious underling takes power and releases a virus that will destroy humanity. The Doctor and Liz find a cure, but are then told that the Silurians have taken over the underground lab and are going to destroy the Van Allen Belt, bombarding the Earth with radiation deadly to mammals, but not reptiles. The Doctor gets them to retreat back into the caves by overloading the reactor and threatening an explosion. The Brigadier -- to the Doctor's disgust -- then orders the Silurian base destroyed.

----

The only ''Doctor Who'' TV story to be officially titled "Doctor Who and...", discounting brief references to the character as "Doctor Who" in an episode of [[Recap/DoctorWhoS2E8TheChase "The Chase"]] (specifically the title of part 5, "The Death of Doctor Who") and the next episode preview for [[Recap/DoctorWhoS3E9TheSavages "The Savages"]]. Legend has it this was due to an error by the first-time director in having the script prefix added to the onscreen titles (the title format stuck for the Target Literature/DoctorWhoNovelisations, and was parodied by Creator/BigFinish Productions a few times). While [[IAmNotShazam "Doctor Who" isn't his name]] (not that anyone told [[Recap/DoctorWhoS3E10TheWarMachines WOTAN]]), the actor was credited as playing "Dr. Who" until 1970 and "Doctor Who" until 1981 (and again in 2005), and the character is frequently referred to in outside media as "Doctor Who" even to this day (likely to avoid confusion with other fictional doctors), so the WordOfGod on the subject is clearly a bit suspect. On another point of trivia, this was also the very last ''Doctor Who'' serial to be filmed in TheSixties; location filming began in November of 1969. [[Recap/DoctorWhoS7E3TheAmbassadorsOfDeath The next serial]] would be the first to actually be taped in the same decade it was aired, starting location filming in January of 1970.

!!Tropes
* AgonyBeam: The Silurians inflict this on their captives with a flashing red light in their foreheads.
* AliceAllusion: The Doctor sings [[Literature/AlicesAdventuresInWonderland The Jabberwocky]].
* AntiVillain: Everyone aside from The Doctor, Liz and the Elder Silurian.
* ArbitraryScepticism: The Brigadier scoffs at the Doctor when he first tells him that there are intelligent reptilian beings living in the caves. Yeah, as if that's any weirder than [[Recap/DoctorWhoS5E5TheWebOfFear robotic yetis]], [[Recap/DoctorWhoS6E3TheInvasion alien cyborgs]] and [[Recap/DoctorWhoS7E1SpearheadFromSpace living plastic mannequins]]...
* AssholeVictim: Doctor Quinn, Major Baker, Doctor Lawrence.
* BigBad: The Young Silurian. He is technically subordinate to the Old Silurian at first but has the virus intended to kill the humans released entirely on his own authority and, when he finds the Old Silurian has given the Doctor the means to find a cure, [[KlingonPromotion kills him and takes over]].
* CatScare: A chicken jumps out as a UNIT squad searches the barn for the escaped Silurian.
* CharacterNameAndTheNounPhrase: The only one (not counting Six' awesomely silly Creator/BigFinish story [[Recap/BigFinishDoctorWho043DoctorWhoAndThePirates "Doctor Who and the Pirates, or The Lass That Lost A Sailor"]]), due to an error in the script department.
* CreatorCameo: Assistant script editor Trevor Ray is the ticket collector and Creator/BarryLetts and Creator/TerranceDicks are passengers.
* DarkerAndEdgier: Between the moral ambiguity, extremely depressing ending and biological horror this could easily pass for a ''Series/{{Torchwood}}'' story.
* DoomsdayDevice: The Younger Silurian intended to use a weapon to destroy the Van Allen Belt and make the Earth's environment hostile to humankind
* DownerEnding: After the Doctor suffered a tense back-and-forth struggle to make the Silurians cool their jets upon awakening to the new dominant species and attempting to broker peace between the humans and Silurians, one of the younger Silurians said no to the whole idea, then took over by force and started an invasion. As a result, the Brig blew up the whole cache of Silurians, lock, stock and barrel. Needless to say, it made the Doctor REALLY angry.
* EarlyInstallmentWeirdness:
** The rest of the UNIT regulars beyond the Brigadier and Liz still aren't present at this stage, resulting in Captain Hawkins filling the role that Benton or Yates would occupy in other Third Doctor stories.
** Despite most fans who started watching ''Doctor Who'' pre-2005 likely remembering them as such, the Silurians' depiction counts as this, with inhuman faces, guttural, modulated voices, very animated mannerisms, and the ability to project a heat ray that can either subdue or kill others from their third eye. "[[Recap/DoctorWhoS21E1WarriorsOfTheDeep Warriors of the Deep]]" depicted them with a mostly similar design, but instead gave them high-pitched voices, slower and more lumbering movements, and got rid of their heat ray, with the third eye instead being used to indicate which of them was speaking. The Eleventh Doctor's first season would give the Silurians a ''major'' overhaul, with human-like faces, voices, and mannerisms, which has stuck in the years since.[[note]](Their debut story did specify that this was a different sub-species to the one seen in this story and "Warriors of the Deep", but the original design is probably unlikely to ever be revisited due to the post-2005 showrunners' preference for alien designs that allow actors' facial features to be visible)[[/note]]
** In addition to the story still lacking the musical "sting" that leads into the end credits, it's the only Third Doctor story that employs a fade-out on the end credits music (as was done in the First and Second Doctor eras), rather than letting the music come to an end, which had been accomplished on the previous story by shortening and cross-fading the music. The following story saw the debut of both the "sting" and a shortened version of the end credits music.
* EvilArmy: Both the Silurians and humans have this trope
* EvilCounterpart: The Young Silurian to The Brigadier. Both rebel against more level headed elders vying for peace, both show extreme courage and determination when their respective races are threatened and both are utterly prepared to wipe out the other party to ensure that their people survive. However, this trope is arguably subverted, as neither one is truly more evil than the other, and while the Young Silurian is foiled the Brigadier's orders to have the Silurians wiped out go off without a hitch.
* FantasticRacism: The Silurians frequently refer to the humans as "apes", and they treat humans as a lesser species. The Humans feel the same way about the Silurians.
* FreakOut: Creator/PeterMiles gives a ''truly amazing'' one, going from CreepyMonotone to ham in .01 seconds.
* GenocideDilemma: An unusual mutual example, with there being people on both sides who want to live in peace with their counterparts, and others who want to just wipe them all out.
* GodzillaThreshold: The threat of the Silurians rendering Earth uninhabitable is enough for the Doctor to have Liz set off an overload of the nuclear reactor, and he confirms afterwards to the Brigadier that he wasn't bluffing and that the reactor really is going to explode. Unfortunately, no-one had the opportunity to tell the Doctor that the Silurians had disabled the lifts to the surface, forcing him to figure out a way to shut down the reactor.
* GoingCritical: Downplayed; while the Doctor talks about the reactor potentially turning into a "massive nuclear bomb" early in the story, when he deliberately sets up a meltdown in the climax the characters talk as if the explosion will kill anyone in the immediate vicinity, but won't be powerful enough to cause any real damage to the nearby Silurian base, which the Brigadier later blows up with conventional explosives.
* GreyAndGrayMorality: Except for the Doctor and Liz - and perhaps the Elder Silurian - nobody comes out looking particularly good in this story, not even the Brigadier. Most characters on both sides retain sympathetic qualities, however. This sort of complexity - that people in general aren't good or bad - was a staple of Malcolm Hulke's scripts - he was also involved in writing "[[Recap/DoctorWhoS6E7TheWarGames The War Games]]" a story dealing with DeliberateValuesDissonance.
* HumansAreTheRealMonsters / [[AliensAreBastards Non Humans From Earth Are Pretty Nasty As Well]]
** HumansAreFlawed: It's played on both ends of the spectrum, too - the Silurians are just as xenophobic as their human counterparts, and yet neither side completely loses all sympathy when all their actions are examined in hindsight.
** Then again the Elder Silurian is probably the only thoroughly good character in the story other than Liz and the Doctor.
* IRejectYourReality: Dr. Lawrence falls into this hard as the serial progresses, constantly refusing to believe there is anything out of the ordinary despite mounting evidence to the contrary. Even when infected with the Silurian Plague, he insists that he is fine despite being visibly sick. He even begins ranting that everything that is happening is just a plot to discredit his work with the reactor.
* {{Jerkass}}: Almost ''everybody'', most notably Dr Quinn, Major Baker, Dr Lawrence, Miss Dawson and the Young Silurian. The only characters that come out of this relatively clean are the Doctor, Liz and the Elder Silurian. Even the Brigadier borders on being this here, especially considering his actions during the ending.
* KillAllHumans: What the more unreasonable Silurians would like to do.
* KlingonPromotion: There's no hint that any other Silurians have a problem with the Young Silurian straight-up murdering the old leader and taking his position.
* LizardFolk: The Silurians, with vaguely piscine features.
* NamesToRunAwayFromReallyFast: For viewers only familiar with later stories, the name of one of the characters can be foreboding... but this story's Frederick "Freddie" Masters has nothing to do with the Doctor's arch-enemy the Master. In fact, Frederick Masters is killed by the Silurian virus.
* NoPlansNoPrototypeNoBackup: Subverted; the Doctor did write down the formula for his successful plague cure... along with those for his ''un''successful attempts at a cure, forcing Liz to work out which is the one they need to mass-produce after the Silurians kidnap him.
* PeopleInRubberSuits: Leading to SpecialEffectsFailure[[invoked]] due to their conspicuously wobbly heads.
* ThePlague: Unleashed on humanity by the Young Silurian in Part 5. Very clearly stated to be bacteria-based, however, rather than a virus.
* PoorCommunicationKills: Narrowly averted; the Doctor didn't tell the Brigadier that he genuinely intended to set off a nuclear meltdown to force the Silurians back into cryostasis, and the Brigadier and Liz in turn didn't get the chance to tell the Doctor that the Silurians disabled the lifts to the surface, trapping them with a reactor that's about to explode. Fortunately, the Doctor is able to figure out a way to stop the nuclear reaction without blowing the whole place up.
* ProperlyParanoid: The Humans and Silurians both believe the other side is trying to wipe them out. They're both right. [[SelfFulfillingProphecy Mainly because]] ''[[SelfFulfillingProphecy they're]]'' [[SelfFulfillingProphecy also trying to wipe]] ''[[SelfFulfillingProphecy them]]'' [[SelfFulfillingProphecy out]].
* RagnarokProofing: The Silurians have been in suspended animation for tens of millions of years, and other than losing their power source, their equipment seems to be perfectly functional.
* SacrificialLion: Captain Hawkins fills the same kind of role that you might see Benton or Yates take on in later Third Doctor stories, which can make it quite the shock when one of the Silurians kills him midway through the final episode.
* SimilarSquad: The Doctor, Liz, and the Brigadier when compared to the Elder Silurian, Silurian Scientist, and Young Silurian respectively.
%%* ShootTheDog
* StepfordSmiler: Dr. Quinn appears jovial and friendly when he first meets the Doctor and Liz, but is harbouring a secret: He is working with the Silurians and is [[IncitingIncident the reason for the power drainage issues]].
* SyntheticPlague: The Young Silurian releases a plague in an attempt to destroy humanity.
* ThirdEye: The Silurians can project some kind of invisible beam from their third eyes to operate their technology, as well as kill humans and each other.
* UncertainDoom: Miss Dawson is mentioned as being an early victim of the Silurian plague, but it's never stated whether or not the Doctor found the cure in time to save her.
* VagueAge: Even the Doctor can't get his age straight:
-->''I'm beginning to lose confidence for the first time in my life - and that covers several thousand years.''
* WhatMeasureIsANonHuman: Averted. The Doctor wants peace with the Silurians and is very upset with the resolution.
* WhatTheHellHero: The Brigadier ordering the Silurian compound destroyed at the end, wiping out the colony. After the explosion, the Doctor drives away with a disgusted look on his face. After the Humans and the Silurians spent the entire story trying to wipe out each other, it's clear that ''neither'' species of Earthling impressed him today.
* WhatTheHellIsThatAccent: The Silurians' accents are all over the place. The Old Silurian leader appears to be going for a slightly Russian accent while his subordinates sound like they're speaking in a rhotic form of BBC English. [[Administrivia/TropesAreNotBad It actually works to emphasise how alien and ancient the Silurians are compared to the humans.]]
----