(Apocalypse is seen entering in the pyramid.)

Apocalypse: This was meant to be the center of the universe before I was betrayed. Now. It will be. (creates Magneto's helmet) A gift... From the past you left behind. And the future that lies ahead. You, will reach down, my son, deep into the Earth. (Magneto uses his amplified powers) Rip everything they built from the ground. Wipe clean this world. And we will lead those that survived. Tinge to a better one.

Professor X: And me? Am I to play a role in this madness?

Apocalypse: You have the most important role of all.

(Meanwhile, the alternate Jaune uses his Build Driver)

Parallel Jaune: Now, shall we begin the experiment? (pulls out two fullbottles) Henshin!

B. Driver: Gorilla! Diamond! Best Match! Are you ready? (Tropical rock music) Kagayaki no destroyer! GorillaMond! Yeah!

(Then the parallel Jaune becomes Kamen Rider Build in his GorillaMond Form)

Build: So? Who's up first?

(Psylocke sees the other heroes, and along with Archangel, decides to face them, leaving Storm to face him.)

Storm: Are you ready, human? To face the force of mother nature?

Build: To protect something important... I will rise up as many times as necessary! That's the Build that we created!

(They fight. Storm is capable of creating tornadoes and emitting lightnings using her bare hands. But Kamen Rider Build's current form can stop projectiles. Then he turns it into a diamond shield, and punches it, shattering it and sending the shards flying at Storm, defeating her.)

Build: The laws of victory have been set! (pulls two other fullbottles) Build Up!

B. Driver: Taka! Gatling! Best Match! Are you ready? (Brass band music) Tenkuu no abarenbou! HawkGatling! Yeah!

(Then Kamen Rider Build changes to his HawkGatling form.)

Build: This is the best. (extends his wings) Now to face Archangel. 

(Archangel is seen facing Blue Beetle and Supergirl until he gets tackled by Kamen Rider Build, and then they end closer to a river. As the other heroes proceed, they see something unbelievable, they see Magneto mastering his powers.)

Firestorm: What's this, Professor?

Cyclops: What we're seeing is a magnetic phenomenon on a much larger scale than we saw in Auschwitz.

Stella: The ground is full of magnetic elements. Iron, nickel, cobalt. 

Mera: The ocean's floor is lying with them too.

(Meanwhile Kamen Rider Build and Archangel are seen face to face.)

Build: I'm impressed you have recovered your fighting spirit. 

Archangel: All for my master.

Build: So you worship him. What else should I expect from one of his horsemen?

(They fight. Archangel's metallic wings are actually something else, even for Kamen Rider Build. But at his HawkGatling form, he can fight on par with him, and eventually manages to beat him.)

Build: A fallen angel worshipping a false God.

(Psylocke is seen easily defeating Team Hanzo, and then has a clash with Shinken Green as Kamen Rider Build comes in and pulls out two other fullbottles)

Build: Build Up!

B. Driver: Ninjya! Comic! Best Match! Are you ready? (Surfer rock music) Shinobi no entertainer! NinninComic! Yeah!

(Kamen Rider Build changes to his NinninComic form.)

Build: (to Psylocke) Hey!

Psylocke: (turns to see Kamen Rider Build) Damn it.

(Then Kamen Rider Build charges at Psylocke, who does the same, and then they exchange blows and blasts.)

Psylocke: Give it up. You can't win!

Build: That's my problem, young lady. I never give up. 

(They fight. Psylocke's amplified powers combined with her training at The Hand makes her a formidable opponent. But Kamen Rider Build can use camouflage and speed at his disposal, and this combination is more than enough to bring her down.)

Build: Only one horseman remains.

(Inside the Pyramid)

Apocalypse: It's already begun, at the lowest depths. Land masses will slow it, but not for long. Eventually, cities, urban centers. Anything built since the Bronze Age will be wiped away.

(Outside the pyramid)

Supergirl: Whatever this Apocalypse is planning, the death toll will be billions.

Starfire: He's talking about the whole god damn world.

(Back to the pyramid)

Professor X: You're just another false god. And whoever's left to follow you when this is all over. They will betray you again.

Apocalypse: You're wrong, Charles. For the first time in a thousand lifetimes... I have you. For all my gifts, I've yet to possess the one I needed most. To be... everywhere. To be... everyone. Seventh wonder, 12 o'clock.

Supergirl: He has the Professor in the center of the pyramid. He's going to transfer his consciousness into the Professor. If he does that, he'll have the power to control every mind in the world.

(Then Super Soldier sees Magneto.)

Super Soldier: There he is.

Mystique: You guys get into the pyramid. I'll take care of Erik.

(Then Kamen Rider Build sets to confront Magneto)

Build: Erik! (Magneto turns to see him) I know you think you've lost everything. But, you haven't. You have Mystique. You have Charles. You have more family than you know. You never had the chance to save your family before. But you do now.

Magneto: I'm sorry...

Build: No, Magneto. (pulls out two other fullbottles) I am the one to apologize. Build up!

B. Driver: Panda! Rocket! Best Match! Are you ready? (Orchestra music) Buttobi monotone! RocketPanda! Yeah!

(Then Kamen Rider Build changes to his RocketPanda form.)

Build: Now Magneto, face me.

(They fight. Magneto's new powers can create a force field seemingly impossible to get through, even by speedsters like The Flash. But not even the master of magnetism is a match for Kamen Rider Build, and he eventually defeats Erik.)

Build: One day you will realize what I meant. 

(The heroes finally arrived at the center of the pyramid, and managed to save Professor X as Shinken Red comes in to face Apocalypse.)

Shinken Pink: Jaune Honey?

Shinken Red: I'm back. And now I'll finish this bastard.

Decade: You're not doing this alone.

(Kamen Rider Decade pulls out his K-Touch)

K-Touch: Kuuga, Agito, Ryuki, Faiz, Blade, Hibiki, Kabuto, Den-O, Kiva! Final Kamen Ride: Decade!

(Kamen Rider Decade gets in his complete form.)

Apocalypse: Who the hell are you?

Decade: I'm just a passing through Kamen Rider. Remember that. 

(Then Kamen Rider Build comes in.)

Build: Build Up!

B. Driver: RabbitTank Sparkling! Are you ready? (Techno rock music) Shuwatto hajikeru! RabbitTank Sparkling! Yea-Yeah!

(Then Kamen Rider Build changes to his RabbitTank Sparkling Form)

Build: Are you ready, guys?

Shinken Red/Decade: We're ready!

(To be continued)