Before the final battle, Andrew made a special trip to the Parallel Universe and told the S1 Justice League to prepare for battle.
Andrew had saved the Parallel Universe, and its superheroes were more than willing to repay the favor, so they had all come.
Well, Trigon's avatar had not arrived yet. A big shot like him was bound to make a grand entrance.
Seeing these reinforcements, Green Lantern beamed. "You're all here? Great. We've got this in the bag."
"This guy really knows how to plant a flag."
Andrew complained, hoping Green Lantern would not be a Crow's Mouth like Tony Stark.
"Damn it."
Sinestro's expression darkened at the sight of humanity gaining so many reinforcements. Unlike him, Zod remained completely confident. He had prepared for years; he would not fail so easily.
"So what if there are superheroes from a Parallel Universe? Forget one—even five Parallel Universes can't change Earth's fate."
Zod, located in Fort Rozz, sneered and dispatched another twenty Kryptonians. Led by Astra's husband, Kara's uncle, they blocked the S1 superheroes' path.
Then, Zod said to S1 Superman, "Injustice Superman, why have you returned to your original appearance?
Speaking of which, we have your Codex and Genesis Chamber to thank. Otherwise, we wouldn't have so many new kin."
Back then, Injustice Superman had come to this universe to hunt down S1 Wonder Woman, only to be beaten so badly by this universe's Superman that he questioned his entire life. To grow stronger, he chose to make a deal with Zod.
Injustice Superman traded the Codex and Genesis Chamber for the Doomsday Gene. That was why Zod's side had gained so many Kryptonians.
Over the past few years, Luthor and Zod had been cultivating New Kryptonians.
Furthermore, Zod only knew about the parts of the later events