!!!This is about the DC series. For the ''ComicBook/TwoThousandAD'' series, see ''Comicbook/{{Savage}}.''

[[caption-width-right:300:My, what big teeth you have, Grandma!]]

''Invasion!'' was a three-part CrisisCrossover miniseries published by Creator/DCComics in 1988. (It should not be confused with the [[Series/{{Invasion}} TV series of the same name]], or any other invasion-themed series.)

An alien race called The Dominators discovers that Earth's superhumans get their powers from a 'meta-gene' and decide to capture them all to be used as living weapons with which to conquer the universe. Realizing that they cannot beat the heroes by themselves, they convince several other races from around Franchise/TheDCUniverse to aid them under the pretense that the "metahumans" were too dangerous to be allowed to exist (and taking advantage of the fact that the [[Franchise/GreenLantern Green Lantern Corps]] had, at the time, been reduced to only a handful.)

The combined might of the alien armada seemed invincible but thanks to a HeelFaceTurn by one of its own member races, it was routed. But a second threat happened when a Dominator scientist detonated a "meta-gene bomb" whose radiation rendered most of Earth's metahumans helpless. Another switching of sides--by, ironically, that same scientist--helped save them.

The series L.E.G.I.O.N. (about a mercenary group that protected the galaxy in the Corps' absence) was spun off from the crossover. It also launched the series of [[ComicBook/JusticeLeagueInternational Justice League Europe]] and the Daxamite superhero Valor (also known as [[ComicBook/LegionOfSuperHeroes Mon-El]]). (A team called The Blasters was introduced by the crossover and given a one-shot special, but never had its own series.)

In 2016, the story was adapted as a four-way crossover between ''Series/Supergirl2015'' ("[[Recap/Supergirl2015S2E8Medusa Medusa]]"), ''Series/TheFlash2014'' ("[[Recap/TheFlash2014S3E8Invasion Invasion!]]"), ''Series/{{Arrow}}'' ("[[Recap/ArrowS5E8Invasion Invasion!]]"), and ''Series/LegendsOfTomorrow'' ("[[Recap/LegendsOfTomorrowS2E7Invasion Invasion!]]"), in that order.

* ActionBomb: Lex Luthor contributed by making robotic replicas of heroes that would get captured, and then explode while being studied.
* AliensInCardiff: The alien armada begins its attack by... taking over Australia.
* BaldOfEvil: Thanagarian men are bald fascists.
* CaptainErsatz:
** The Khunds are pretty much [[Franchise/StarTrek Klingons]].
** Inverted with the Durlans, who are essentially the same as the more popular [[ComicBook/SecretInvasion Skrulls]] but predate their first appearance by a month.
* CategoryTraitor: The Thanagarians joined mostly to capture Katar and Shayera Hol.
* EasilyThwartedAlienInvasion: Earlier attempts by various races. This one came closer to succeeding however.
* EldritchAbomination: The Gil'Disphan were the Invasion's submariner force, and looked like tumors floating in bubbles.
* EvilIsPetty: Part of what stopped the invasion was the various races sniping at each other, helped along by Deadman possessing some.
* FantasticCasteSystem: The Dominators, to their disadvantage. The scientist who invented the gene bomb was only told to study the meta gene because of his caste status. His subsequent torture for going outside what his caste was permitted to do was what allowed the heroes to convince him to make a cure.
* FantasticRacism: Part of the reason for the alliance was... that aliens don't like how we look. The Daxamites and Thanagarians resembled Earth's humans, but they had no genetic variance eg. they all look alike.
* HeroicSacrifice: One of the Daxamite observers for the alien alliance, who died of lead poisoning so he could reach a transmitter to tell his homeworld to throw in on Earth's side. (At the time, the Daxamite was the father of Lar Gand, a.k.a. [[ComicBook/LegionOfSuperHeroes Mon-El]]; this has probably been {{retcon}}ned.)
* HumanAliens: The Daxamites and Thanagarians.
* {{Irony}}: Several things.
** The invaders had no idea that the superhumans were going to be used against them once captured.
** The Daxamites helping route the invasion.
** A Dominator helping save Earth's heroes (after almost killing them.)
** The Thanagarians' original reason for joining the Invasion was to capture Hawkman and Hawkwoman, rogue Thanagarians who had defected to Earth. The popularity of the [[{{Hawkman}} Hawkworld]] comic would lead to these characters being rebooted, and retconned the previous Hawkman and Hawkwoman members of the Justice League being advance agents of the Invasion who remained loyal. Hawkworld came out literally months after the conclusion to Invasion!, essentially making the Thanagarians' involvement immediately incoherent.
* MetaOrigin: The meta-gene, present in some but not all humans. It grants superpowers when exposed to dangerous forces. Note that not all superheroes got their powers from it, just the majority.
** The "Blasters" team were the survivors of a group of 100 random humans [[AlienAbduction kidnapped]] to demonstrate the theory. The Dominator running the experiment expected that if they were all attacked by a firing-squad barrage, one of them would spontaneously develop powers that would allow him to survive. Instead, seven people did, including (unknown to them) former ComicBook/{{Justice League|OfAmerica}} sidekick Snapper Carr.
** The Daxamite gain powers on Earth similar to Superman's, apparently being distant cousins of Kryptonians. However they were also vulnerable to lead-based pollution, and only survived because Earth's heroes saved them.
** Some people actually ''gained'' powers (or had them altered) as a result of the meta-bomb, most notably ComicBook/{{Justice League|International}} manager Maxwell Lord. Several of the new members of Comicbook/DoomPatrol introduced during the Creator/GrantMorrison run were also said to have got their powers from the meta-bomb.
*** {{Metamorpho}} actually came back from the dead because of it. Notable not only in that it implied his powers were genetic rather than mystic, but also that the gene bomb could work on the dead.
* NamesToRunAwayFromReallyFast: The Dominators. [[WhatAnIdiot Not that most of their allies realized it]].
* {{Parody}}: At the time, Marvel's ''ComicBook/XMen'' were situated in Australia. So they had an issue where they stopped a thinly-disguised version of DC's invasion.
* RedSkiesCrossover: Some comics had no direct ties to the event beyond a single black and white panel with reversed coloration, signifying the moment of the gene bomb's detonation.
* RubberForeheadAliens: Most of the alien races that weren't the Daxamites, Thangarians, or Gil'Dishpan.
* SpacePolice: The [[Franchise/GreenLantern Green Lantern Corps]], the L.E.G.I.O.N.
* WeaksauceWeakness: Lead, for the Daxamites.
* YouHaveFailedMe: The Dominator Leaders had not told their scientist what the real purpose of their mission was. So they rewarded his invention with torture, which led to his HeelFaceTurn.
* YourPrincessIsInAnotherCastle: The invading alliance seems to be defeated by the second issue... oh, wait, gene bomb.