(The members of Neo Beacon are seen with Batman in an underground base)

Kevin: So... Batman... Where did you and the evil Superman come from?

Weiss: And why did he kill Adam and Ironwood? I know I shouldn't be caring about that evil faunus, but...

Batman: That's how my world's Superman considers anyone who opposes him. And he killed Adam and Ironwood to set an example.

Blake: An example? Of what?

Batman: Of what happens to either criminals or heroes, even citizens or children who question his commands. About the place where my Superman came from, he came from an alternate world where he is the oppressive ruler of the Earth. I am the leader of the Insurgency. He plans to conquer each universe, destroying anyone who opposes him.

Glynda: He is even worse than Salem, Team CRDL, or anyone we met.

Ruby: Just a question... How did you know where to find us?

Batman: I recruited some heroes from other universes who oppose Superman and refuse to back his insanity. They are coming right now.

(The two Insurgents come in as Zero recognizes one of them)

Zero: Leon? Is that you?

Leon: Hi there, Zero. All right?

Zero: Yeah. You know. Battling enemies, saving people and other things.

Batman: Leon was the one who warned Winter about the death of Ironwood at the hands of Superman. He also transferred the data of all those who support Superman to the robot recently built by Atlas.

Weiss: Penny...

Blake: Who is the other?

????: I am Martian Manhunter. I was presumingly dead at the hands of Superman. But I survived and secretly provided a hideout for the White Fang.

Sienna: I owe you one, Martian.

Batman: I guess I didn't tell you how it actually started...

Coco: Huh?

(Some flashbacks are seen)

Batman: It all started when Superman's wife Lois Lane got pregnant.

(Then The Joker is seen)

Batman: Somehow this information ended up at the joker's ears.

(Then Jimmy Olsen is seen dead)

Batman: He kidnapped Lois Lane and took her to a submarine.

(Superman is seen killing Lois Lane while believing he was fighting Doomsday)

Batman: Superman got drugged by him, tricked into killing his own wife and their unborn son.

(The next flashback shows Metropolis completely destroyed)

Batman: As if it wasn't enough, he linked the nuke's trigger into Lois' heartbeats. Her death caused the destruction of Metropolis.

(Then Superman is seen killing The Joker)

Batman: Since then, he crossed the line and killed The Joker.

(The last flashback shows Superman ruling the Earth with iron fist)

Batman: And that's how the Superman I knew was...gone...

(Flashback ends)

Kevin: And now he was stripped of the right to have a family...

Ren: He now decided that he will not rest until there is no more freedom, no more hope...

(Meanwhile at Atlas Military, a robot named Penny is seen completed)

Penny: Penny Operational.

Winter: That works. Good. Let's go. We have to find the others.

Penny: Affirmative.

(As Winter and Penny escape through the tunnels, they see a purple cloaked woman and a cyborg threatening the Atlas Soldiers)

Atlas Soldier: Do it expect us to be loyal to the very one who murdered General Ironwood?

????: His death is a warning. If you insist on opposing the High Counselor...

Atlas Soldier: We rather die fighting than becoming his slaves!

Penny: Data confirmed: Regime Members Raven and Cyborg.

Winter: Hey you!

Cyborg: Huh?

Winter: If you want to slaughter Atlas, you're going to have to get past me!

Penny: I say the same.

Raven: Since you took your decision, you're going to watch these two die!

Winter: Bring it on!

Cyborg: Now that does it! I'll show you the trouble you two got yourselves in. (approaches Penny) And how we'll knock your heads sideways!

(Winter fights Raven while Penny fights Cyborg. Winter uses her ice magic, but Raven blocks them with her dark magic. Penny uses her robotic knives and they break through Cyborg's shield, piercing each one of his parts, in a desperate effort, he tries to hack her, but she is fast and Cyborg get hacked instead, then Penny hacked him into blasting Raven off, giving the chance for Winter to slash the daughter of Trigon)

Winter: Head's still on straight.

(As they proceed, the Atlas Soldiers follow her)

Atlas Soldier: Well done, General Winter. Together we will avenge Ironwood!

????: I looks like I lost the party.

Winter: Firing Squad!

Penny: Wait. He is in our side. His name is Deathstroke. He is a member of the One-Earth Insurgency.

Winter: Hmmm.... (to the soldiers) Lay the weapons down!

Deathstroke: Follow me.

(Back to the Underground Base, Batman, Leon, Martian Manhunter and Neo Beacon finished their reunion when they suddenly got a report of Sinestro attacking Vale)

Martian Manhunter: Damn.

Kevin: A supporter of Superman?

(Batman walks away)

Batman: Shouldn't we take action?

(In Vale, Jaune, Pyrrha and Nora are seen fighting Sinestro, but they are easily outclassed by him. As he was about to kill them, Penny comes in and blasts him away)

Penny: Data confirmed: Regime Member Sinestro.

Sinestro: It looks like somebody knows me. That should be amusing.

(Penny uses her robotic knives to destroy Sinestro's constructs)

Sinestro: I know someone who really amused me too.

(Sinestro and Penny have a clash of swords which Penny reigns victorious)

Penny: Take this!

(Penny blasts Sinestro away. But he manages to return to fight her. As they fight, Sinestro secretly calls for help before being taken down)

Penny: Too easy... Why?

Deathstroke: Ask him. (points at Yellow Lantern)

Penny: Data confirmed: Yellow Lantern Hal Jordan.

Yellow Lantern: Somebody called me?

Winter: (looks at Sinestro) A friend of yours?

Yellow Lantern: My former mentor was right. Fear is more efficient than willpower.

Penny: So you used to be Green Lantern... What changed you?

(Penny and Yellow Lantern have a brief clash)

Yellow Lantern: I'm still all about order.

Winter: Save it, Hal Jordan. Time to teach you what willpower really means!

(Winter fights Yellow Lantern, who reveals why he became part of Sinestro Corps. Winter simply ignored the fact and used all of her skills to defeat the fallen guardian)

Winter: Class closed.

Atlas Soldier: Amazing, General Winter.

(Batman comes in alongside Kevin)

Winter: Kevin. I'm glad you came.

Batman: Follow me. (to Deathstroke) Good job, Deathstroke.

(The heroes return to the underground base as the screen fades out)