History Main / KnockoutGas

In a web series, on the youtube channel of Dessag (https://www.youtube.com/channel/UCZb_i2Imn7BoErDkgLEB2GQ), a series of web videos depict a secretary getting repeatedly knocked out by sleeping gas in every episode as part of the plot. In total, she has been knocked out by sleeping gas nearly thirty times winning her the record of being gassed onscreen more than any other actress. The actress stated that stars such as Linda Carter on Wonder Woman and Linda Thorson on the Avengers also played characters who were either chloroformed or knocked out by sleeping gas multiple times. Most of the knockouts in the series are very stereotypical from what is depicted in pop culture. The gas knocks her out instantly and she awakes hours later with no ill effects.

In a web series, on the youtube channel of Dessag (https://www.youtube.com/channel/UCZb_i2Imn7BoErDkgLEB2GQ), a series of web videos depict a secretary getting repeatedly knocked out by sleeping gas in every episode as part of the plot. In total, she has been knocked out by sleeping gas nearly thirty times winning her the record of being gassed by sleeping gas more than any other actress. Most of the knockouts in the series are very stereotypical from what is depicted in pop culture. The gas knocks her out instantly and she awakes hours later with no ill effects.

In another web series, on the youtube channel of Dessag, a series of web videos depict a secretary getting repeatedly knocked out by sleeping gas in every episode as part of the plot. In total, she has been knocked out by sleeping gas nearly thirty times winning her the record of being gassed by sleeping gas more than any other actress. Most of the knockouts in the series are very stereotypical from what is depicted in pop culture. The gas knocks her out instantly and she awakes hours later with no ill effects.

In another web series, on the youtube channel of Dessag, a series of web videos depict a secretary getting repeatedly knocked out by sleeping gas in every episode as part of the plot. In total, she has been knocked out by sleeping gas nearly thirty times winning her the record of being knocked out by sleeping gas more than any other actress. Most of the knockouts in the series are very stereotypical from what is depicted in pop culture. The gas knocks her out instantly and she awakes hours later with no ill effects.

In another web series, on a the youtube channel of Dessag, a series of web videos depict a secretary getting repeatedly knocked out by sleeping gas in every episode as part of the plot. She holds the record of being knocked out by sleeping gas more than any other actress at nearly thirty times.

Often involves InstantSedation, and related to OneDoseFitsAll. SisterTrope to DeadlyGas (and in RealLife, though almost never in fiction, the line between the two can be a very fine one.) SisterTrope to LaughingGas. SisterTrope to TranquillizerDart. Often used in a KnockoutAmbush. Often results in NonSequiturThud.

* In Manga/OnePiece, half of the Straw Hats fall victim to this whilst the others are exploring Punk Hazard. The ArcVillain Caesar Clown also uses a variation of the trope. He doesn't knock out people with gas, but rather ''lack'' of gas: he uses his powers to take away all of the oxygen from a specific area, and thus suffocates the opponent to unconsciousness.

* In ''Comicbook/JetDream'', Jet uses "Kayo Powder" [[ShoePhone in a makeup compact]] for this effect.
* In ''{{Tintin}} in America'', the Gangsters Syndicate of Chicago uses knockout gas on Tintin after dropping him through a TrapDoor and before dumping him into Lake Michigan. Fortunately for Tintin, they used the wrong kind of gas.
* In ''Comicbook/AmericanFlagg'', Somnabutol™, in low doses, is a recreational drug. In higher doses, it's "the Official Riot Control Device of the 1996 East Coast Meltdown." Also described as "like a wet dream without the hot parts."
* In ''[[Comicbook/XMen The Uncanny X-Men]]'', in one issue, Cyclops is being chased by the rest of the X-Men who have been tricked by [[spoiler:Mastermind]] into thinking he's [[spoiler:Dark Phoenix]] come back to life. He lures the X-Men into the Danger Room, where he uses a field of "Wizard of Oz" poppies keyed specifically to knock Rogue unconscious. He does this so that he can [[spoiler:use her power absorption power to take brief control of a comatose Professor X's psionics to pierce Mastermind's illusion]].

* ''[[{{Franchise/Pokemon}} Pokemon]]'' has the moves Sleep Powder and Spore. The only differences are the accuracy and the PP.

* In VisualNovel/NineHoursNinePersonsNineDoors and its sequel, VisualNovel/VirtuesLastReward, the main characters are all sedated with a gas called Soporil, after which they are kidnapped to play the Nonary Game.

[[folder:Web Comics]]

Often involves InstantSedation, and related to OneDoseFitsAll. SisterTrope to DeadlyGas (and in RealLife, though almost never in fiction, the line between the two can be a very fine one.) SisterTrope to TranquillizerDart. Often used in a KnockoutAmbush. Often results in NonSequiturThud.

Usually delivered as a visible fog, and often [[TechnicolorScience brightly colored]] as well, but invisible gas is also common, particularly in budget-conscious productions. Knockout Gas can be delivered through special vents just for that purpose, or it can be pumped in through the regular ventilation system. As with other forms of InstantSedation, dosage doesn't seem to matter. The effects last just long enough for maximum tension or drama. Recovery tends to be just as fast as the onset, and the victims rarely suffer any lasting effects beyond, perhaps, a mild headache. Nobody ever seems to crack their skull or otherwise get hurt when falling down, either.

Often involves InstantSedation, and related to OneDoseFitsAll. SisterTrope to DeadlyGas (and in RealLife, though almost never in fiction, the line between the two can be a very fine one.) SisterTrope to TranquillizerDart. Often used in a KnockoutAmbush.

In fiction, one of the easiest ways to incapacitate an opponent or group of opponents is to get them in a closed room and pump in Knockout Gas. Knockout Gas is an area-effect form of InstantSedation: as soon as the victims breathe it, they cough weakly a few times and then slump to the floor unconscious. Other forms make the victim sleep and are known as sleeping gas.

Subtrope of InstantSedation, and related to OneDoseFitsAll. SisterTrope to DeadlyGas (and in RealLife, though almost never in fiction, the line between the two can be a very fine one.) SisterTrope to TranquillizerDart. Often used in a KnockoutAmbush.

* As with the movie and TV versions, the comic versions of ComicBook/TheGreenHornet have also used knock out gas.

* Creator/DCComics' golden age hero [[ComicBook/SandManMysteryTheatre Sandman]], one of the members of the ComicBook/JusticeSocietyOfAmerica, used a knockout gas gun. Later versions of the character also used knock out gas.

** ''ComicBook/WonderWoman1987'': The Sangtee Empire pumps knockout gas into disabled ships in found during their patrols before [[SalvagePirates boarding and stealing them]] and enslaving any outsiders on board.

* Played with in the 1967 comedy ''Film/ThoroughlyModernMillie'' where the antagonist is pumping a white sleeping gas into the room of someone she plans to kidnap and sell into slavery, the problem is that she is in the room with the gas. As the gas gets thicker in the room she starts to yawn, slows down, and finally just falls over onto the bed; the gas has dissipated by the time she is found, still asleep. It is then later played straight with darts that work instantly.

* ''Film/KingCobra1999'': The film ends on a WhamShot as it's revealed that the giant cobra was merely inoculated, as the gas cannister used against him was the wrong one, and only contained sleeping gas.

** In "Hi Diddle Diddle" and "Smack in the Middle" the Riddler uses a aerosol can of sleeping gas to put Robin to sleep.

* ''Series/WonderWoman'': Wonder Woman is taken down many times this way. Knockout gas and chloroform were the the only reliable method of fighting her when she was not disguised as [[SecretIdentity Diana Prince]].

* Gas Grenades are a weapon that can be used by the crew-player in the boardgame ''TabletopGame/TheAwfulGreenThingsFromOuterSpace''; the effect on the Things (good, bad or indifferent) is randomly determined for each game, but any crew present when one gets set off are knocked unconscious for a turn.

** ''VideoGame/ThiefIITheMetalAge'' adds in Gas Mines - a mix of the Gas Arrow and Mine that can be used in the same way, but only as an area effect and only after a mook steps on it.

* ''VideoGame/MetalGearSolidVThePhantomPain'' allows players to develop and use sleeping gas grenades, which can knockout almost any enemy guard in seconds. There are also sleep gas variants of the game's grenade launchers, though GasMaskMooks are immune to all forms of sleeping gas.

* ''Sherlock: The Riddle of the Crown Jewels'' requires you to hold your breath before breaking an ampoule filled with a knockout gas. You then have extremely tight window to do what's necessary with the two knocked out enemies.

* In VisualNovel/NineHoursNinePersonsNineDoors and it's sequel, VisualNovel/VirtuesLastReward, the main characters are all sedated with a gas called Soporil, after which they are kidnapped to play the Nonary Game.
** In the first game it's a huge plot point that it works like this. Pretty much it the first anesthetic gas that you don't have to dose properly to avoid overdose.

* In ''Literature/{{Curveball}}'', [[spoiler:Agent Travers]] rigs the fire sprinklers in his office to spray an instantly paralyzing neurotoxin to deal with unfriendly visitors. On second he's kicking his desk in a certain spot, the next, everyone is wondering why they're suddenly on the floor. [[spoiler:Agent Travers]] is also paralyzed by the gas, but since he took the antidote beforehand, it wears off him in just a few minutes.

* The Alistair [=MacLean=] novel ''The Golden Gate'' has aerosol gas that cause instant unconsciousness. The criminal mastermind planning TheCaper wants to [[JustLikeRobinHood avoid killing anyone for publicity reasons]] in case he doesn't get away with it.

* ''Series/TheProfessionals''. In "Need to Know", the KGB snatch a DoubleAgent from a VulnerableConvoy, but don't want to invite retaliation by killing British agents, so use stun gas instead. [[spoiler:We later discover the snatch is a BatmanGambit by George Cowley, who is covering his men with a sniper rifle in case the KGB decided to use more lethal means.]]

* ''Fleming: The Man Who Would Be Bond''. Ian Fleming demonstrates a fountain pen that sprays knockout gas (among other ShoePhone gadgets) for some visiting top brass. Unfortunately, he does this by gassing his SassySecretary, who is not amused when she wakes up.

* ''Series/TheProfessionals''. In "Need to Know", the KGB snatch a DoubleAgent from a VulnerableConvoy, but are reluctant to stir things up by killing British agents, so use stun gas instead. [[spoiler:We later discover the snatch is a BatmanGambit by George Cowley, who is covering his men with a sniper rifle in case the KGB decided to use more lethal means.]]

* ''Series/TheProfessionals''. In "Need to Know", the KGB snatch a DoubleAgent from a VulnerableConvoy, but are reluctant to stir things up by killing British agents, so use stun gas instead. [[spoiler:We later discover this is a BatmanGambit by George Cowley, who's covering his men covered with a sniper rifle in case they decided to use more lethal means.]]

* ''[[WesternAnimation/{{Birdman}} The Galaxy Trio]]'' episode "The Duplitrons". Meteor Man is taken out twice by sleep gas: once while he's flying in a rocket pod, the second time after he wakes up in the Duplitrons' base.

** In ''Treehouse of Horror III: King Homer'', the giant ape is subdued by KnockOutGas, but not before eating someone.