(I don't own the rights to any of these characters I'm just a fan making a story, I will be using characters and things from other comic book franchise like Marvel comics, Image comics, WildStorm comics and The Boys as well as I may use the names of characters, backstories and things within this story)
(The Dheronian was a race that had a war with Krypton within the Earth One Universe in the comics)
Earth 2: Superman's Origins
There was once a peaceful world that was known as Krypton which was the home world for a technology advance race called the Kryptonian who were governed by the Ruling Council and their society was different from many other races in the Universe as unlike other races Kryptonian are not born through natural means instead they are created in the Birthing Matrix which was a chamber where Kryptonian's children are artificially created and they are raised in separate from their parents until they reach a certain age.
Krypton had always had a bad relationship with the Dheronian's who were from the world known as Dheron which was a nearby planet to Krypton and they have hated each other simply because of their various differences, such as Democracy vs Monarchy and how life should be lived which eventually led to a war between the two worlds.
The war between Krypton and Dheron lasted for many years with casualties between the two worlds were in the thousands which cause both the Ruling Council of Krypton and the monarchy of Dheron to finally call a end to the war however not everyone wanted the war to end because they wish to avenge their fallen friends and family like Sergeant Preus who was a distinguished soldier in the Kryptonian's Military Guild who wanted to avenge all of the lives of the Kryptonian that had been killed by the Dheronian's during the war.
Preus believed that the current Ruling Council was weak and so that Krypton needed a stronger leadership to led Krypton into becoming a great galactic empire in the Universe which it was destined to be meaning making himself the Grand Regent of Krypton and Preus became even more certain of this when he had discovered that the Ruling Council had a secret weapon which they could have use to completely destroy the Dheronian's and won the war for Krypton at the very start of the war against the Dheronian's and their secret weapon was a creature known as Doomsday who possessed unimaginable power and bloodlust.
Many years ago on Krypton there was a civil war that was started by a rebel group calling itself Black Zero so the house's that were members of Krypton's Science Guild like the famous House of El work together to create a weapon to stop Black Zero which led to the creation of Doomsday to put a end to the civil war and protect Krypton. However their creation proved to be to violent to be controlled and to powerful to be destroyed so the Ruling council of Krypton at the time used a device which was created by Val-El call the Phantom Zone Projector which can send anyone or anything to the Phantom Zone an inter-dimensional realm outside the normal space/time continuum which would later become a prison where the Ruling Council would send the worse criminals making Doomsday it's first ever inmate.
The current Ruling Council was too afraid to unleash Doomsday from the Phantom Zone on to the Dheronian's fearing that what if they did free Doomsday but they wouldn't be able to send him back to the Phantom Zone and the creature may also end up destroying them as well. Preus gathered everyone who also share in his vision for a grand military government Krypton and they call themselves the Sword of Rao after their Sun-God Rao however the Ruling Council was able to stop to them thanks to the help from Jor-El who was the great grandson of Val-El, one of Krypton's greatest scientists and the former best friend of Preus.
Afterwards the Ruling Council sentenced Preus and most of his followers to the Phantom Zone but not before Preus vowed vengeance and he claimed that they have doomed Krypton as the war had left both Krypton and Dheron defences weakened and neither of them were unprepared when Brainiac came to their world's. Brainiac was a artificial intelligence machine originally from the Planet Colu called Computo and it was designed to gather date and study all forms of life however it went rogue and left the Planet Colu knowing that if it stay it's creator Vril Dox who created Computo by basing it from his own brain patterns and the other scientists would be able to destroy it and once it left Planet Colu it created itself a spaceship and a physical body which it had designed to look like it's creator Vril Dox and gave itself a new name Brainiac and afterwards Brainiac continue its original mission to gather knowledge which has led it to create a device that can struck cities are people so Brainiac could transportation the small orbs on its Skull Ship so Brainiac could continually study the lifeforms and exterminate them.
Brainiac choose Krypton first simply because it was a bit more weaker then Dheron because of the lost of Preus and his followers and when Brainiac arrive it chose one of Krypton's three greatest cities known as Kandor to be added to it's collation and sent it's drones to gather everyone who it thought was useful and those who it didn't were killed while Brainiac hack into every computer system of Krypton and downloaded all of it's knowledge. Once Brainiac was finish it then fired a blast from it's Skull Ship into the Planet's core triggering it's destruction like it has done to every other world it has come to as Brainiac wanted to make the knowledge that it had gathered only available to itself and Brainiac then travel to Dheron to repeat what it had just done.
However a few weeks before Krypton's destruction Jor-El had found out about Brainiac but when Jor-El try to warn the Ruling Council they simply ignored his pleas for evacuation and later expelled him from Krypton's Science Guild so with the little of restores that Jor-El had he was able build a small spaceship and on the day that Brainiac had arrive, Jor-El and his wife Lara Lor-Van sent their baby son Kal-El who was name after Jor-El's father and the first Kryptonian to be born through natural means after centuries to world known as Planet Earth. Jor-El had discovered the planet because years ago he had sent out a satellite into space for research and Kal-El would be able to blend in with the inhabitants of Earth who are call Human's as they look identical to Kryptonian and because Planet Earth had a yellow sun unlike Krypton which had a red sun there were side effects on Kryptonian's Physiology which were the yellow sun radiation granted Kryptonian's incredible powers.
Jor-El also made sure that Kal-El would know about his family's legacy by giving him a special Crystal which could transform into a large fortress that contained many of Kryptonian's technologies and a special orb which Jor-El had originally created for the Ruling Council back during the war against Dheron with it purpose being able to contain a large amount of data as the Ruling Council had intended to use it to copy all of Dheronian's knowledge to use against them but instead Jor-El had use it to copy all of Krypton's knowledge before Brainiac had downloaded it into itself.
However Kal-El wasn't the only Kryptonian that was sent off Krypton before it's destruction as his cousin Kara-Zor-El was also sent to Earth as well thanks to her father Zor-El who was Jor-El's younger brother as he believed his older brother's warring so he also built a spaceship as well which he and his wife Alura In-Ze place their daughter inside and in a cryo sleep and as they sent her to Planet Earth and they told her to have a good life as well as protect her cousin.
Zam-Zod was from the well-known and respected House of Zod however within this universe the House of Zod symbol wasn't the Kryptonian symbol for honor which looks the Human letter 'Z' like it is in other universe's instead they had the Kryptonian symbol for hope which looks the Human letter 'S' and is what the House of El usually had in most universe's while here they had the Kryptonian symbol for hope which looks the Human letter 'P' and he was also a close friend of Jor-El and believed his warring so he use the spaceship that Jax-Ur who was a Kryptonian's scientist and a member of Krypton's Science Guild who sided with Preus during his rebellion but he had built for himself in secret to escape in case Preus had lost but Jax-Ur was caught and sent to the Phantom Zone before Krypton's destruction.
During Brainiac's attack Zam-Zod and his wife place their son Val-Zod inside the spaceship and put him into a cryo sleep and sent him to Earth however when Krypton exploded unlike in many other universe's it caused Kal-El's spaceship to be knock off course instead meaning that his ship wouldn't arrive on Earth at the same time as Val-Zod and Kara-Zor-El. When Val-Zod's spaceship reach Planet Earth it landed in the United States of America where he was found by Sam and Angela Jordan who when they found Val-Zod in his spaceship decided to adopt him and and gave him the name Vance Jordan.
Val-Zod would eventually moved to the big city known as Metropolis and it was there in Metropolis where Val-Zod became the superhero known as 'Superman' and not to long after he reunited with Kara who when she arrived on Earth was found by Doctor Jeremiah and Eliza Danvers who when they found Kara Zor-El decided to adopt her and raise her along side their daughter Alex Danvers and gave her the name Kara Danvers and she used her powers to help people and she became the superhero known as 'Power Woman' and and eventually they fell in love with each other and get married.
They would also meet other people who also possesses super powers similar to their own like Princess Diana of Themyscira who was known as Wonder Woman, Thomas Wayne Jr who was known as Batman, Alan Scott who was known as Green Lantern, Jay Garrick who was known as The Flash, Queen Marella who was known as Aquawoman, Tommy Merlyn who was known as Green Arrow and many other superheroes and together they became known to the world as 'The Justice Society'
In DC Comics Sergeant Preus is another evil Kryptonian, i wanted to do something different instead of having in every universe that Dru-Zod is evil and he wanted to take over Krypton
In DC Comics Val-Zod is taken in by Jor-El and Lara as his parents were executed by Krypton's court and is the second to use the mantle of Superman but i thought why not in this universe he's the one who created the mantle of Superman instead but that would mean i would have think of a way why he would have S and i think this way works as it would also explain why Kara calls herself Power Woman instead of Superwoman
In DC Comics most versions i'v seen of Thomas Wayne Jr are evil so i thought why not do something different
This version of Diana is like the Golden Age Wonder Woman where she was formed out of clay by her mother, Hippolyta, and had life bestowed upon her by the Greek gods
In DC Comics Queen Marella is from the Earth 2 comic
In DC Comics Tommy Merlyn is the best friend of Oliver Queen