History Main / Lockdown

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* The vaults in ''VideoGame/{{Fallout}}''.

* A few times in the original ''Deus Ex'', usually at UNATCO HQ. As early as the very first mission, where "base is under [=lockdown=] until the danger's gone, Agent Denton", and later when [[spoiler: JC is captured by MJ12 and has to escape out of UNATCO. Getting the key for the front door from Alex Jacobsen is the only way out.]]

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* ''Film/WarningSign'' has a full quarantine [=lockdown=] in the Biotek facility. And apparently their employees are idiots, because they stare at the closing shutters and alarms in confusion, and then complain to the security guard that they are frightened of being ''locked in''.

-->'''CIA Mook:''' This is Italy, they don't do lockdown.

* Happens a few times on ''Series/{{NCIS}}'' and its spinoffs whenever classified information is about to be discussed.

Also see: TrappedInContainment and QuarantineWithExtremePrejudice. Quite likely to result in FailsafeFailure or DidntSeeThatComing if the plot demands whatever is in [=lockdown=] escapes. [[IThoughtItMeant Has nothing to do with]] a certain [[WesternAnimation/TransformersAnimated Cybertronian bounty hunter]]. Often the preface for a BottleEpisode.

* ''{{Spooks}}'' has done this twice. First with the VX episode "I Spy Apocalypse", and then with the episode with the crazy former spy, and the Princess Di conspiracy theory story.

Also see: TrappedInContainment. Quite likely to result in FailsafeFailure or DidntSeeThatComing if the plot demands whatever is in [=lockdown=] escapes. [[IThoughtItMeant Has nothing to do with]] a certain [[WesternAnimation/TransformersAnimated Cybertronian bounty hunter]]. Often the preface for a BottleEpisode.

A location is isolated by means of locking every door/window/refrigerator/[[AirVentPassageway air vent]]/other entrance in the area so that no one can get in or out of the building. For the medical cases surrounding this, it is a quarantine. Armed guards may also be posted, depending on whether or not the military is involved.

* ''MitadakeHigh'' begins with you in a locked-down school with the killer.

* In ''Series/{{Cordon}}'', a deadly new disease come to Belgium and a whole city district is closed and locked down in an attempt to isolate the contagion. Remade for the USA with the action transferred to Atlanta, Georgia, as ''Series/{{Containment}}''.

* In ''Series/{{Cordon}}'', a deadly new disease come to Belgium and a whole city district is closed and locked down in an attempt to isolate the contagion. Remade for the USA with the action transferred to Atlanta, Georgia, as ''Containment''.

* ''Manga/MahouSenseiNegima'' has a set of [=Lockdown=] doors in [[GreatBigLibraryOfEverything LibraryIsland]], which Yue triggers upon having a HeroicBSOD when she discovers herself in a LoveTriangle involving her best friend and her teacher.

* In ''VideoGame/TheElderScrollsIIIMorrowind'', each of the ThievesGuild OpenSecret "[[LegitmateBusinessmensSocialClub Guild Halls]]" is putting a plan in place to defend against attack by the rival [[TheSyndicate Camonna Tong]]. The Balmora Guild Hall tasks you with finding a "Master of Security" to rig the South Wall Cornerclub to be able to "lock down" in this fashion should the Tong attack.

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* Averted in ''Film/TheBourneSupremacy''.
-->'''Landry:''' Have you locked down the area? ''(Bourne has just escaped)''
-->'''CIA Mook:''' This is Italy, they don't do [=lockdown=].

* An early episode of ''Manga/KeroroGunsou'' features the Hinata house going into [=Lockdown=]...because Keroro has a cavity. A cavity caused by tiny aliens, but still...

* ''Series/BarneyMiller'' episode "Quarantine" is both this trope and UnintentionalPeriodPiece. The detectives and criminal suspects in the 12th precinct are confined there after one suspect is believed to have contracted a dangerous disease. The disease? Smallpox.

* In ''Anime/IrresponsibleCaptainTylor'', after Tylor is [[spoiler: kidnapped]] the command takes the opportunity to put the whole crew in quarantine because ([[BlatantLies they claim]]) of the alien virus [[spoiler: the crew were infected with to force him to surrender.]]

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* In the U.S., due to the rash of school shootings most schools have a [=lockdown=] procedure that goes into effect if there's any report of a violent criminal or crime in (or even near) the school. All teachers are told to lock their doors until they get the all clear.
* On September 11, 2001, there were 4,200 planes in the air. Who knew which ones had terrorists waiting to strike? Obviously, cue Operation Yellow Ribbon and shut down airspace for two days.
* US government buildings usually have [=Lockdown=] procedures as well, in case of workplace violence or terrorism.
* NORAD in Cheyenne Mountain has a [=lockdown=] procedure to isolate itself from the world, including sealing a huge blast door.
* Zoos have [=Lockdown=] protocols to isolate dangerous and volatile animals from contact with humans or one another, either during routine transfers between exhibits or in the event of an escape.