"No one gets in, no one gets out."A location is isolated by means of locking every door/window/refrigerator/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. When this begins, the odds are 99% someone will attempt a Indy Hat Roll. Also see: Trapped in Containment. Quite likely to result in Failsafe Failure or Didn't See That Coming if the plot demands whatever is in lockdown escapes. Has nothing to do with a certain Cybertronian bounty hunter. Often the preface for a Bottle Episode.
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Anime & Manga
- Mahou Sensei Negima! has a set of Lockdown doors in Library Island, which Yue triggers upon having a Heroic B.S.O.D. when she discovers herself in a Love Triangle involving her best friend and her teacher.
- An early episode of Sgt. Frog features the Hinata house going into Lockdown...because Keroro has a cavity. A cavity caused by tiny aliens, but still...
- In Irresponsible Captain Tylor, after Tylor is kidnapped, the command takes the opportunity to put the whole crew in quarantine because (they claim) of the alien virus the crew were infected with to force him to surrender.
- NERV goes into lockdown in End of Evangelion. It...doesn't work.
- Even in Rebuild of Evangelion , where the UN and NERV bases get extra funding, Angels still blast through blast doors like a torch to wax paper. Anything built by the hand of man slows Angels down at best.
- A New Hope:
- "Close the blast doors!"
- "Open the blast doors, open the blast doors!"
- In United 93, the Real Life September 11 lockdown of all planes in American airspace is shown in great detail. Once American Airlines Flight 77 hits the Pentagon, FAA National Operations Manager Ben Sliney orders that every plane has to land as quickly as possible, no exceptions. Since it was unknown where the terrorists would strike next, over 4,200 planes were grounded for two days.
Sliney: Listen, I'm not taking any more chances. We've got stuff flying that we've got no control over. And I don't want a board full of these planes hitting everything on the east coast. This is a national emergency, everyone lands regardless of destination.
- During the film Men in Black II, the MIB HQ goes into Code 101 Lockdown.
- X-Men Origins: Wolverine when Wolverine is escaping the Weapon X facility.
- Total Recall (1990). Happens twice. Once when Quaid arrives on Mars and later when Cohaagen locks down a sector which has disobeyed him:
Technician: Sir, the oxygen level is bottoming out in Sector G. What do you want me to do about it?Vilos Cohaagen: [as if obvious] Don't do anything.Technician: But they won't last an hour, sir.Vilos Cohaagen: Fuck 'em. It'll be a good lesson to the others.
- Warning Sign 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.
- Averted in The Bourne Supremacy. Bourne has just escaped from CIA custody.
Landry: Have you locked down the area?CIA Mook: This is Italy, they don't do lockdown.
- Shown in the opening sequence of Colossus: The Forbin Project when the Master Computer goes on-line, the idea being that no saboteur or commando unit can get inside. Of course, this causes a problem when the computer decides to Take Over the World.
- Ex Machina. The isolated underground lavatory/house automatically locks all the doors whenever the power gets shut off, to prevent someone getting past the security by knocking out the generator. This becomes plot-relevant.
- Done in the Agent Pendergast novel The Relic, with disastrous results.
- Blind Lake begins with the entirety of the titular town being put under lockdown for an unknown reason.
- Happens for months to the city of Oran in The Plague, due to bubonic plague. The novel explores the psychological effects on the people within, who become pretty much depressed and gloomy.
- The Hunger Games: During the bombing of District 13 in Mockingjay.
Live Action TV
- Barney Miller episode "Quarantine" is both this trope and Unintentional Period Piece. The detectives and criminal suspects in the 12th precinct are confined there after one suspect is believed to have contracted smallpox.
- The Lone Gunmen used automatic fire doors in the improvised lockdown of a pathogen-contaminated corridor when they made their Heroic Sacrifice at the end of The X-Files.
- Scrubs had a quarantine. And an Indy Hat Roll
- Heroes had a lockdown in Level 5 to keep the bad dudes from getting out.
- The lockdown in the hatch in Lost seems to shield the residents with blast shield. The previous Dharma Initiative resident used these shields as maps before the arrival of the protagonists.
- 24. CTU is locked down during the first season.
- CTU is locked down constantly, but it never seems to do any good actually stopping people from breaking in or out!
- Stargate SG-1 has a lockdown protocol, including Stock Footage of the NORAD blast doors closing (see Real Life).
- The first (broadcast) episode of The Outer Limits (1995), "Blood Brothers", had a secure medical experiment lab that could be sealed and sterilized with microwaves.
- 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.
- In Bones, the boys were sawing a bone that had some fungus in it, resulting in the team being locked down for Christmas in the Jeffersonian lab. It's first time we see Angela's father.
- Torchwood had one that activated by reading poetry and could be removed by reading the ISBN number of said poetry anthology. (It Makes Sense in Context)
- Star Trek does this a few times. Notable because they also fail to do it a few times - when locking down the ship would have caused the episode to be very short.
- Happens in Oz (and every other prison drama) when someone gets murdered or the prisoners riot.
- Parodied in a Very Special Episode of One Tree Hill where Jimmy Edwards shoots up the school. He doesn't understand how Keith is able to enter the school because...
Jimmy: The school's on lockdown!!!
- Happens a few times on Eureka with Global Dynamics.
- Purdey gets trapped inside a high-tech building that goes into lockdown in The New Avengers episode "Complex".
- Happens in a few episodes My Name Is Earl when Earl is in prison for a crime that Joy committed.
- Happened in the House season 6 episode "Lockdown" when a baby went missing.
- Leverage episodes "The Inside Job" and "The Hot Potato Job", the gang trigger a lockdown deliberately inside a high-security company to distract the security surveillance from themselves.
- Community's "Cooperative Calligraphy" Jeff calls one for the study room when Annie's pen goes missing.
- In the Supernatural episode "Devil May Care" (S09, Ep02), Kevin is locked in the bunker unable to contact anyone or open the door after the sensors detected the falling angels.
- Angel. The Wolfram & Hart skyscraper does this as a Godzilla Threshold response to the Beast killing everyone in the building. Steel shutters close over all windows, doors and air vents in the skyscraper, and every corpse reincarnates as a bloodthirsty zombie. Of course, as the Beast has Nigh-Invulnerability the only people bothered by this are our heroes.
- Doctor Who. In "Planet of Evil", numerous doors seal off various parts of the spaceship from the anti-matter monsters, who just walk right through them.
- Happens a few times on NCIS and its spinoffs whenever classified information is about to be discussed.
- Also happens in "SWAK" when Tony opens an envelope that releases white powder in the office, which turns out to be Yersinia pestis bacteria (pneumonic plague).
- Scorpion: In "Plutonium is Forever", a lockdown traps Cabe inside a nuclear power plant when the reactor goes into meltdown.
- Person of Interest. In "If-Then-Else", Team Machine must infiltrate a server room on Wall Street to stop a financial crash. They realise they've been Lured into a Trap when Samaritan agents are seen entering the floor, whereupon a security lockdown protocol (designed to protect against a terrorist attack) is activated to trap them inside.
- In 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.
- Occurs in Terminator 3: Rise of the Machines during "Blitz", complete with an animation of blast doors closing.
- The vaults in Fallout.
- After their defeat at Helios One and Elder Elijah's desertion, the Mojave chapter of the Brotherhood of Steel put themselves under lockdown, also preventing any members left outside from returning.
- In Dead Money's backstory, the nuclear war triggered the Sierra Madre Casino's lockdown systems, trapping the Gala Event guests inside. At the end of the DLC, reading Sinclair's message on the vault's terminal causes the vault to permanently seal, resulting in a Non Standard Game Over. The Courier can also lure Elijah into this trap.
- In Sonic Adventure 2, the titular prison of Prison Island is locked down when Tails gets there. Also, the facility that Dr. Eggman breaks into to retrieve the secret weapon goes into lockdown. This time, you see a number of doors closing and hear a voice telling people to close them. (In both cases, the doors that don't succumb to you blowing off the locks open anyway just because you destroyed some G.U.N. robots.)
- Mitadake High begins with you in a locked-down school with the killer.
- Devil Survivor takes place in the "Tokyo Lockdown", things get complicated and bad very quickly.
- Periodically in Dead Space, the room Isaac is in goes into "quarantine" lockdown. The lockdown ends when he successfully defeats the Necromorphs that find their way in.
- Prison Architect allows the player to do this with a button that sets all doors in the prison to the "Locked in closed" position, so as to limit the potential damage an ensuing Prison Riot is causing.
- 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 JC is captured by MJ 12 and has to escape out of UNATCO. Getting the key for the front door from Alex Jacobsen is the only way out.
- In The Elder Scrolls III: Morrowind, each of the Thieves' Guild Open Secret "Guild Halls" is putting a plan in place to defend against attack by the rival 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.
- In El Goonish Shive Moperville South school has a "standard lockdown procedure". This means suddenly every door is locked (even ones without locks) and corridors are cut into sectors with Some Kind of Force Field. How can this happen? Because one of the teachers is a wizard.
- Schlock Mercenary has the methods of "lockdown" fitting for things like motile weaponized nanomachines (enacted through the next four pages).
- "Mix Up at the Snack Factory".
"Mr. Cheezo, the workers aren't gonna make it out alive.""Well, I guess we'll have to hire new workers, won't we?"
- Happens in episode 5 of Sex House when the contestants attempt to rise up against the host, although how much it was actually needed is debatable, considering the house is locked down all the time anyway.
- Young Justice: In "Terrors", Amanda Waller locks down Belle Reve in an attempt to stop the mass breakout.
- The second Toonami Alternate Reality Game, titled Lockdown, centers around the Absolution being trapped in a Derelict Graveyard, unable to move until TOM repairs the engines and the DOKs shut down the Tractor Beam that's holding them there.
- In the Rick and Morty episode "Total Rickall" the Smith household gets put into lockdown by Rick to prevent alien parasites from escaping.
- 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.