History Fridge / CrisisOnEarthX

--->'''Overgirl:''' ''to Supergirl'' Oh please, we're everything they want to be. Blonde, white. Aryan perfection...you're [[AGodAmI a god]] to them.

** The heroic characters who stay heroic also make sense. James Olsen, being a black man, would never have a chance in the Nazi regime so of course he would still be raised to believe in the old American ideals. In the case of Leonard Snart, the man was a rebel by nature so when the natural order is evil, damn right he'd be [[TheCape a goody-two shoes]]. This may also account for Leo exhibiting more CampGay behavior than his Earth-1 version. He is rebelling against one of the most homophobic regimes imaginable and likely defines himself by being exactly what the Nazis condemn.

** Mon-El/Oliver: A hedonistic, womanizing playboy who gradually change and mature into a weapon of justice whilst maintaining their playboy persona as a public identity.
** Felicity/Kara: A blonde, bespectacled NiceGirl who work on a multimillion dollar company ''and'' a group of heroes who keep an eye on threats of their respective city. They even wear similar clothes while on the job, and they even note of their visual similarities in the previous crossover.

** Kara being Overgirl may seem odd at first, considering how she is usually so driven to help others. But, as Season 3 has repeatedly shown, Kara also has a very powerful sense of pride and of being above everyone and everything else, even with how she was raised. Earth-X would do nothing but encourage that view, meaning that instead of merely suppressing her emotions it's very easy to see how a Nazi-raised Kara could begin to see herself as an {{Ubermensch}}. In addition, Kara is basically the exact vision of the Nazi ideology's perfect being: tall, powerful, and blonde (although she does have grey-green rather than blue eyes). And while it might seem counter-intuitive that an ideology based on racial purity would accept a literal alien, historically the Nazis actually did make exceptions for non-Aryans they deemed useful or who could further their goals. Eventually stated outright by Overgirl.

* When [[spoiler: Nora West-Allen, Barry's and Iris' daughter from the future]] talks to Barry at the wedding, the Flash Leitmotif plays, hinting at their connection.

* Mick responding to Snart's comment on due process with "Never heard of it" may seem like a throwaway joke or a reference to his being a convicted felon, but...in this time, in this situation, Mick was right. They were facing an invading army bent on conquest and slaughter. Due process has no place in a literal war zone. Lethal force is entirely justified and, dare say, actively encouraged, especially for those, like Mick, who don't have any way to reliably incapacitate-it's kinda hard to shoot to wound using a flamethrower. In such a situation, the only ones who can really afford to uphold the "no killing" rule are those like Barry, Kara, Frost...
* The Earth-X invaders choosing to blow their chance at stealth by attacking Barry and Iris' wedding seems a bit odd, even if they believed they could catch the heroes off-guard, but it makes a good degree of sense given just ''who'' was getting married; being Nazis, an interracial union would be a personal insult to their beliefs, which when combined with the chance to catch the heroes off-guard, was an opportunity they couldn't ignore.

* Winn-X seems on a very short fuse during his entire encounter with the heroes, adamant about destroying the gateway between earths and nearly killing them all to keep his enemies away from his home. At first it seems puzzlesome even given its his Earth-X doppleganger, but then I realized: on Earth-38, Winn and James are best friends. If there's anything of that relationship shared by their counterparts fighting the oppressive Nazi regime, then not only did the resistance lose one of its best champions, but Winn lost a friend. No wonder he's so pissed.

* The Earth-X invaders choosing to blow their chance at stealth by attacking Barry and Iris' wedding seems a bit odd, even if they believed they could catch the heroes off guard, but it makes a good degree of sense given just ''who'' was getting married: Being Nazis, an interracial union would be a personal insult to their beliefs, which when combined with the chance to catch the heroes off guard, was an opportunity they couldn't ignore.

* With the exception of James Olsen, there are no confirmed doppelgängers of any of the shows' non-white heroes/characters. Given that their world is ruled by nazis, it isn't much of a stretch to think they were executed in the name of "genetic purity".

*** There's also the idea that Superman, and by the metrics of this series Supergirl, represent the very best of the ideals they were raised with. In Prime universes, that's good old-fashioned middle American values. In a world ruled by Nazis, that's. . . well. . .
** The heroic characters who stay heroic also make sense. James Olsen, being a black man, would never have a chance in the Nazi regime so of course he would still be raised to believe in the old American ideals. In the case of Leonard Snart, the man was a rebel by nature so when the natural order is evil, damn right he'd be [[TheCape a goody-two shoes.]] This may also account for Leo exhibiting more CampGay behavior than his Earth-1 version. He is rebelling against one of the most homophobic regimes imaginable and likely defines himself by being exactly what the Nazis condemn.

*** So do Diggle and Lyla.
* When [[spoiler: Nora West Allen, Barry's and Iris' daughter from the future]] talks to Barry at the wedding, the Flash Leitmotif plays, hinting at their connection.
* [[spoiler:Martin being on the receiving end of {{Retirony}} instead of peaceful retirement. If Stein simply retired he would still probably be required to make sporadic appearances on ''The Flash'', since he and his family live in Central City.]] On a meta level, this wouldn't work because of [[spoiler:Creator/VictorGarber's]] decision to leave the franchise.

* J'onn J'onzz came to earth before World War II, so in Earth X, he either escaped the white martians who killed most of his family only for his new home to be taken over by the white martians' earth equivalents, or he escaped the white martians only to be killed by Nazis. Or perhaps he fled the planet as soon as the Nazis took over. Or, if the point of divergence isn't the Nazis winning WW2, maybe he never survived at all.

** Oliver probably realized how utterly, ''hilariously'' outgunned he was faced with a Kryptonian. With Barry and other metahumans he's dealt with, he and the team could come up with some method of dealing with them, but Kara was completely beyond anything Earth-1 had to offer, with no known weaknesses except alien mind-control. If he figured out there was a possibility there was a Krypton in his universe and there was no way anyone would be able to deal with them, he could very well have asked had Cisco to do some research, and Cisco might have asked Gypsy and Harry if they knew anything about Kryptonians anywhere in the multiverse, which would have led to Kryptonite.

** Felicity/Kara: A blonde, bespectacled, and {{Adorkable}} NiceGirl who work on a multimillion dollar company ''and'' a group of heroes who keep an eye on threats of their respective city. They even wear similar clothes while on the job, and they even note of their visual similarities in the previous crossover.

* J'onn J'onzz came to earth before World War II, so in Earth X, he either escaped the white martians who killed most of his family only for his new home to be taken over by the white martians' earth equivalents, or he escaped the white martians only to be killed by Nazis. Or perhaps he fled the planet as soon as the Nazis took over.

** Mon-El/Oliver: Hedonistic, womanizing playboys who gradually change and mature into a weapon of justice
** Felicity/Kara: Blonde {{Adorkable}} NiceGirls who work on a multimillion dollar company ''and'' a group of heroes who keep an eye on threats of their respective city. They even wear similar clothes while on the job, and they even note of their visual similarities in the previous crossover.

* When [[spoiler: Dawn Allen, Barry's and Iris' daughter from the future]] talks to Barry at the wedding, the Flash Leitmotif plays, hinting at their connection.

* Winn-X seems on a very short fuse during his entire encounter with the heroes, adamant about destroying the gateway between earths and nearly killing them all to keep his enemies away from his home. At first it seems puzzlesome even given its his Earth-X doppleganger, but then I realized: on Earth-19, Winn and James are best friends. If there's anything of that relationship shared by their counterparts fighting the oppressive Nazi regime, then not only did the resistance lose one of its best champions, but Winn lost a friend. No wonder he's so pissed.

* J'onn J'onzz came to earth before World War II, so in Earth X, he either escaped the white martians who killed most of his family only for his new home to be taken over by the white martians' earth equivalents, or he escaped the white martians only to be killed by Nazis.

** The heroic characters who stay heroic also make sense. James Olsen, being a black man, would never have a chance in the Nazi regime so of course he would still be raised to believe in the old American ideals. In the case of Leonard Snart, the man was a rebel by nature so when the natural order is evil, damn right he'd be [[TheCape a goody-two shoes.]]