History Recap / DoctorWhoS30E11TurnLeft

** The Doctor, without Donna, wasn't willing to save himself during the business with the Racnoss. It's implied that the Doctor was feeling so depressed and alone after of the events of [[Recap/DoctorWhoS28E13Doomsday the previous episode]] that he doesn't really care whether he lives or dies, which would explain why he is killed permanently. Meeting Donna eased that loneliness and allowed him to reconnect with the world, which is why Donna was able to snap him back, so he wouldn't die with the Racnoss.

* ApocalypseHow: In the AlternateTimeline, the crises escalate into a ApocalypseHow/Class1 fallout over the course of less than two years. Britain ends up under martial law with the whole of Southern England flooded with radiation after the ''Titanic'' obliterates London, the many who are displaced from this are crowded into designated houses, and eventually the "[[ANaziByAnyOtherName England for the English]]" Law gets passed. Nevermind France closing its borders after getting overwhelmed with refugees, or sixty million of America's population getting turned into Adipose.

* CardboardBoxOfUnemployment: Donna is downsized from her clerical job. She leaves with a cardboard box containing her possessions... along with some other items that aren't technically hers but she decides to take as compensation.

* OohMeAccentsSlipping: Creator/BilliePiper apparently lost the accent she had used as Rose, so she speaks with a noticeable lisp. She also has a pronounced overbite that she never used to have, mildly affecting her speech (and possibly causing the lisp). Piper said in an interview that she sounded like that because it was cold as they were shooting in winter and she was wearing a "tiny jacket". On the other hand, some fans note that Rose sounds quite a bit like the Tenth Doctor down to his inflections and speculate that this was intentional to show how much Rose had become like him.

* WhatTheHellIsThatAccent: Billie Piper apparently lost the accent she had used as Rose in Series 1 and 2, so she speaks with a noticeable lisp. She also has a pronounced overbite that she never used to have, mildly affecting her speech (and possibly causing the lisp). Piper said in an interview that she sounded like that because it was cold as they were shooting in winter and she was wearing a "tiny jacket".

* WithholdingTheirName: Rose never tells Donna her name, or her UNIT allies for that matter. She explains that if she says the wrong word it could "destabilise an entire causal nexus" (I.E. screw up the timeline). It also helps delay the Doctor's panicked reaction when Donna tells him about her experiences.

** The Cloister Bell (the TARDIS' OhCrap signal, first heard in "[[Recap/DoctorWhoS18E7Logopolis Logopolis]]") is ringing at the end.

** [[SmallRoleBigImpact Unstated in the episode]], but with the crash of ''[[Recap/DoctorWho2007CSVoyageOfTheDamned the Titanic]]'', it can be inferred that not only do Astrid, Mr. Copper, and everyone else aboard die, but [[TheBadGuyWins Max Capricorn successfully carried out his revenge plan and all his trustees were blamed for the event.]] While it doesn't destroy the Earth, Capricorn ultimately had one of the biggest roles in making things much worse.

* ApocalypseHow: In the AlternateTimeline, the crises escalate into a ApocalypseHow/Class1 fallout over the course of less than two years. Britain ends up under martial law with the whole of England flooded with radiation after the ''Titanic'' obliterates London, the many who are displaced from this are crowded into designated houses, and eventually the "[[ANaziByAnyOtherName England for the English]]" Law gets passed. Nevermind France closing its borders after getting overwhelmed with refugees, or sixty million of America's population getting turned into Adipose.

** The UNIT soldier who reports the Doctor's death is Private Carl Harris, one of the two who were first hypnotized and later killed by the Sontarans in "The Sontaran Stratagem"/"The Poison Sky". Since this appearance is earlier in the timeline than those events, it's unclear if they still happen to him.

* CrapsackWorld: Without the Doctor there to do his thing, the world gets worse and worse. Although at least we avoided [[Recap/DoctorWhoS29E12TheSoundOfDrums the Master's]] [[Recap/DoctorWhoS29E13LastOfTheTimeLords reign of terror]], as without the Doctor's intervention he presumably died as a human at the end of time. Weirdly, Earth doesn't immediately turn into [[Recap/DoctorWhoS30E2TheFiresOfPompeii New Pyrovilia]] with no one to cause the eruption of Vesuvius.[[note]]According to WordOfGod, UNIT time-travelling commandos took care of the [[Recap/DoctorWhoS29E2TheShakespeareCode Carrionites]] and the Pyroviles, as well as the effects of other stories set in the past, but this was deemed to be too self-referential and self-indulgent in an episode already heavily loaded with continuity references.[[/note]][[invoked]]

* WithholdingTheirName: Rose never tells Donna her name, or anyone else for that matter. She explains that if she says the wrong word it could "destabilise an entire causal nexus" (I.E. screw up the timeline). It also helps delay the Doctor's panicked reaction when Donna tells him about her experiences.

* AmericaSavesTheDay: Subverted. They were going to send aid money to help Britain ("God bless America!"), but the Adipose disaster was relocated to America and ended up killing 60 million Americans, so they focused on recovering from that instead.

* AbstractEater: The Time Beetle. According to Rose and the Doctor, it's a member of the Trickster's Brigade; they feed off of time by changing a life in tiny ways, such as meetings never made, children never born, and a life never loved. The universe usually compensates around it, but in Donna's case it create an entire parallel world.

* ForWantOfANail:
** Donna turns right instead of left, and the whole world — probably the whole universe — changes.
** Because the events of "[[Recap/DoctorWhoS30E4TheSontaranStratagem The Sontaran Stratagem]]"/"[[Recap/DoctorWhoS30E5ThePoisonSky The Poison Sky]]" played out differently, Ross Jenkins, the UNIT soldier who drove the Doctor to meet Luke Rattigan, is still alive, as are both of the soldiers that General Staal brainwashed into becoming spies for the Sontarans.

** Martha Jones never meets the Doctor, and sacrifices her life to save one man when the Royal Hope Hospital is stolen by the Judoon.

** Without the Doctor's expertise (or Martha's UNIT connections), Torchwood is forced to deal with the Sontarans, ending with Gwen Cooper and Ianto Jones igniting the atmosphere by blowing up the Sontaran mothership from within it.

* NoNameGiven: Rose never tells Donna her name, or anyone else for that matter. She explains that if she says the wrong word it could "destabilise an entire causal nexus" (I.E. screw up the timeline). It also helps delay the Doctor's panicked reaction when Donna tells him about her experiences.

** [[RealityEnsues This episode shows what would happen]] if ''Series/DoctorWho''-level disasters were common in an otherwise familiar human world. It shows the level of human suffering, death, economic depression, and downright boredom that would result if the Doctor weren't there to stop every last one of them, resulting in the aforementioned CrapsackWorld.

* FakeShemp: Creator/David Tennant didn't actually play the Doctor when he was lying on the stretcher when his body from the Thames.

* ThemeTuneCameo: The ''Series/{{Torchwood}}'' theme can be heard when Rose tells Donna about the death of the Torchwood crew.

** Because the events of "[[Recap/DoctorWhoS30E4TheSontaranStratagem The Sontaran Stratagem]]"/"[[Recap/DoctorWhoS30E5ThePoisonSky The Poison Sky]]" played out differently, Ross the UNIT soldier is still alive. (As is Private Harris, one of the two soldiers brainwashed by the Sontarans.)

''[cut to the perpetually optimistic Mr Colasanto, who is hugging his wife and breaking down in tears as they are hauled away]''[[note]]This is all TruthInTelevision as well: During the Second World War many Italian families were put to work in labour camps due to Italy being allies with Germany.[[/note]]

* CrapsackWorld: Without the Doctor there to do his thing, the world gets worse and worse. Although at least we avoided [[Recap/DoctorWhoS29E12TheSoundOfDrums the Master's]] [[Recap/DoctorWhoS29E13LastOfTheTimeLords reign of terror]], as without the Doctor's intervention he presumably died as a human at the end of time. Weirdly, Earth doesn't immediately turn into [[Recap/DoctorWhoS30E2TheFiresOfPompeii New Pyrovilia]] with no one to cause the eruption of Vesuvius.[[note]]According to WordOfGod, UNIT time-travelling commandos took care of the [[Recap/DoctorWhoS29E2TheShakespeareCode Carrionites]] and the Pyroviles, but there wasn't time to show it in the episode.[[/note]][[invoked]]

* BritainIsOnlyLondon: Averted, as the latter sections of the story take place in Leeds, in West Yorkshire OopNorth.

* SecondLawOfMetafictionalThermodynamics: Granted, the point of the episode is to show how hopeless Earth would be in a timeline without the Doctor, but come on. The characters from ''Torchwood'' and ''The Sarah Jane Adventures'' have plenty of PlotArmor on their own shows, but as soon as they're thrown into an alternate timeline, the writers can't help but kill off those entire casts.

* NoNameGiven: Rose never tells Donna her name, or anyone else for that matter. She explains that if she said the wrong word it could "destabilise an entire causal nexus" (I.E. screw up the timeline). It also helps delay the Doctor's panicked reaction when Donna tells him about her experiences.

* ShoutOut: The whole JustBeforeTheEnd meets KitchenSinkDrama feel hearkens back to ''Film/TheWarGame'' and Davies' own ''Series/TheSecondComing''.