Multiverse

The Multiverse consist of multiple universes, existing in the same physical space. kept separate by different vibration frequencies, so that way the universes or referred to as "Earths", do not interact with one another.

There are 52 Universes of the DC Multiverse, however, prior to the Crisis of the Anti Monitor, there had been other Earth that lack formal designation such as the horrid state called Earth-X and an Earth the Flash of Earth-1 created by accident after undoing Flashpoint, giving birth to Prime Earth, a universe that has no tied connections with the other Earths and is closed off from any multiversal laws that affect the other Earths such as having not been destroyed by the antimatter or its Kryptonians being immune to Kryptonite of these other Earths except for the Kryptonite of the Earth they reside from.

Post Flashpoint/ Birth of Prime Earth
After Barry Allen of Earth-1 reset the alternate timeline known as Flashpoint by letting Reverse Flash kill his mother back in the year, 2000. While certain changes were made to Earth-1, unbeknownst to Barry or any individuals of the other Earths except from the Monitor, Barry ended up creating a new universe labeled as Prime Earth. This Earth seemed to have separate itself from the rest of the 52 universes and gains immunity that all the other Earths do not possess.

Rebirth of Prime Earth
After the defeat of the Anti Monitor, while Prime Earth had been left untouched by the antimatter destruction that destroyed the other Earths, everything had been restored and Claire returned back to her own universe, however, upon arrival, she was met with a excruciating headache and began to see visions of many new Earths produced from her own Earths (The following based from DC comics Earths and Video Games), all of which have their own Superwoman and have lived different lives, some good and some evil. She dismisses it as and after effect of the Crisis, but little did she know that all the Superwomen she saw do exist and are presiding outside of her Earth, living in their own multiverse and have the same multiversal laws that applies to Prime Earth in all of them as well, making this multiverse known as Prime Multiverse.

Infinite Crisis
An unknown individual is recruiting many of the evil Superwomen of their own Earths such as Justice Lord Superwoman, Injustice Superwoman, Ultrawoman, Nightmare Superwoman, Bizarro-Woman, and Zombie Superwoman, while Claire of Prime Earth is asked by the aid of the good Superwomen, Smallville Superwoman, Kingdom Come Superwoman, Batman Beyond Superwoman, Arcane Superwoman, Atomic Superwoman, Gaslight Superwoman, President Superwoman, and Mecha-Superwoman to stop the unknown enemy and her army of evil Superwomen that threatens no only the Prime Multiverse but all the other multiverses in the Omniverse.

52 Multiverse

 * Earth-Prime
 * Earth-2
 * Earth-9
 * Earth-12
 * Earth-19
 * Earth-21
 * Earth-96

Prime Multiverse

 * Negative Prime (Negative Earth-0)
 * Prime (Earth-0)
 * Smallville (Earth-1)
 * Crime Syndicate (Earth-3)
 * Injustice (Earth-7)
 * Batman Beyond (Earth-12)
 * Arcane (Earth-13)
 * Atomic (Earth-17)
 * Gaslight (Earth-19)
 * Kingdom Come (Earth-22)
 * President Superwoman (Earth-23)
 * Bizarro (Earth-29)
 * Red Daughter (Earth-30)
 * Nightmare (Earth-43)
 * Mecha (Earth-44)
 * Justice Lord (Earth-50)
 * Dceased (Earth-66)

Known Extra-Dimensional Planes

 * Fifth Dimension
 * Speed Force