[[quoteright:345:http://static.tvtropes.org/pmwiki/pub/images/retired_eleven_the_great_detective_8356.jpg]]
[[caption-width-right:345: You know the Eleventh Doctor is ''really'' hurting inside when he stops wearing a bow tie.]]

->''In London, in the time of Queen Victoria, there were many tales of a remarkable personage known as "[[TitleDrop The Great Detective]]".''
-->-- '''Narrator'''

2012's ChildrenInNeed Special, hosted by Creator/MattSmith and Creator/JennaLouiseColeman. The main plot involves the so-called "Paternoster Gang" -- [[Recap/DoctorWhoS32E7AGoodManGoesToWar Madame Vastra, Jenny Flint and Strax]], all in VictorianLondon, where TheyFightCrime. Or in Strax's case, declare war on the Moon. The Doctor is also present, but after the events of [[Recap/DoctorWhoS33E5TheAngelsTakeManhattan the previous episode]], he has seemingly decided to retire and just wants to live out his life as an ordinary, if cynical, Victorian gentleman, not caring a bit about the fantastic adventures the trio dangle before his nose. You can watch it [[http://www.youtube.com/watch?v=G17_B4uACgg on YouTube]].

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!!Tropes:

* AchillesInHisTent: The Doctor says he's finished going on adventures and saving humanity, only to join up with Vastra, Jenny, Strax and Clara to stop the Snowmen in the main episode.
* BackFromTheDead: Strax, who was killed in "A Good Man Goes to War", is alive and well in this episode.
* BlatantLies: Vastra and Jenny tell the Doctor they need his help on various adventures to get him out of his HeroicBSOD, only to sheepishly admit halfway through they're actually nothing. [[ProudWarriorRaceGuy Strax]] meanwhile tells the Doctor he's [[UpToEleven declared war on the Moon]].
* ContinuityNod: Vastra and Jenny unknowingly describe the plots of the original series episodes [[Recap/DoctorWhoS7E1SpearheadFromSpace "Spearhead from Space"]] and [[Recap/DoctorWhoS7E4Inferno "Inferno"]].
* ComicallyMissingThePoint:
** Strax seems to be single-minded in his pursuit of the Moon, even when the obvious flaws in his plan are pointed out...
--->'''Strax:''' It has gained an enormous tactical advantage.\\
'''Jenny:''' There's no-one living there!\\
'''Strax:''' Then it is ''clearly'' time to act. They won't suspect a thing!\\
'''Jenny:''' ''Who'' won't suspect a thing?\\
'''Strax:''' ''Moonites.''
** Later, he's still on it...
--->'''The Doctor:''' [[HeroicBSOD I've retired]].\\
'''Jenny:''' [...] I think he means it.\\
'''Vastra:''' Yes my dear, I rather think he does.\\
'''Strax:''' ...[[BrickJoke Damn moon.]]
* DespairEventHorizon: Losing the Ponds has apparently managed to push the Doctor over this.
* ForegoneConclusion:
-->'''Creator/MattSmith:''' This Christmas, the Earth will face terrible, terrible danger. But, as all humanity hangs in the balance, will anyone be able to persuade The Doctor to save the day?\\
'''Creator/JennaLouiseColeman:''' [[LampshadeHanging Yes]].\\
'''Matt Smith:''' Right, well, so much for dramatic tension. Blimey, Jenna.
* {{Gonk}}: The narration explicitly says that Strax's Sontaran looks were so repellant that nobody wanted to photograph him.
* {{Prequel}}: For [[Recap/DoctorWho2012CSTheSnowmen "The Snowmen"]].
* ReplacementGoldfish: PlayedForLaughs. Creator/MattSmith declares Creator/KarenGillan's character Amy Pond could never be replaced, only for the camera to pull out and show her replacement Creator/JennaLouiseColeman standing right next to him.
-->'''Matt Smith:''' If you remember, when last seen, the Doctor had to say goodbye to his best friend Rory, and to Amelia Pond, the woman who will never be replaced in his hearts.\\
'''Jenna-Louise Coleman:''' Hi [...] Oh don't worry, she won't be watching. She's in [[UsefulNotes/LosAngeles L.A.]]
* TheScrooge: The Doctor, who wants nothing more to do with fun and adventures.
* ShoutOut: A group of unique Victorian personages? [[ComicBook/TheLeagueOfExtraordinaryGentlemen Sounds familiar.]]
* UnexplainedRecovery: Strax -- unless you've seen the Series 6 minisode [[Recap/DoctorWhoS33ShortTheBattleOfDemonsRunTwoDaysLater "The Battle of Demon's Run: Two Days Later"]], where it's explained he was OnlyMostlyDead.
* VehicleVanish: As the Doctor walks away, a hansom cab passes between him and Vestra, Jenny and Strax. When it has gone, he has vanished.

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-->.....''"Damn moon..."''