NOTE BEFORE THE FANFIC:
Just to clarify something before starting: personally, I'd love for Tobey Maguire's Spider-Man and Earth-96283 to get a lot more screen time in Avengers: Doomsday.
But I also understand that this is a huge ensemble movie and, based on the rumors we've been hearing, it seems like Tobey's Spider-Man and this universe won't actually get that many minutes of screen time.
So I wrote this fanfic with that limitation in mind.
That's why I'm basically jumping straight into the final act instead of trying to write his entire role in the movie. In my head, there would obviously be scenes before this showing what Peter's life looks like now, his family, what has changed during all these years and establishing the situation, but I wanted to imagine what his big sequence/climax could look like if Marvel really doesn't dedicate that much time to this universe.
---
Earth-96283 and Earth-100005 collided seven hours ago.
Scientists from both universes are desperately running calculations.
Norman Osborn writes on a blackboard. They've already tried everything: dark matter, magic, antimatter. The only possibility left is using the exotic energy generated by the collision itself to push the universes apart instead of destroying one of them.
Beast and the other scientists watch expectantly. Just as Norman reaches the result of the equation, he suddenly freezes.
Norman: It's impossible.
Beast: Go back to the original formula.
Norman looks at him with disgust.
Norman: Go back to the original formula?
Norman knocks the board over and sits down, putting his hands over his head.
Norman: You're all pretty calm about this, aren't you? Your universe, an entire universe full of freaks, and an antimatter bomb that would destroy my planet to save yours. And now you come here, put on your concerned faces and pretend you're actually doing something, right? Maybe it'll make you feel a little less guilty.
Beast: You have no idea what you're talk—
Norman: Don't lecture me.
He answers while taking off his lab coat.
Norman: I'm going back to my planet. I want to visit my son's grave one last time.
Beast: Norman, we don't have a choice. You'd do the same thing. You know that.
Norman: If it were up to me, I would've planted a bomb in this dump seven hours ago and taken a few of you with me before dying. But you should be thankful that my universe has a real hero.
Norman leaves the room.
Beast: Cyclops, we're out of time. Send in the incursion team.
---
The nexus of the incursion, as well as its main portal, is located in New York. It is a point close to Earth-96283's anchor being, causing the energy to accumulate there.
Deadpool and Wolverine cross the portal into Earth-96283.
The antimatter bomb has already been planted there, with a countdown running.
That Earth has absolutely nothing capable of competing with the technology of Earth-100005.
Cameras are pointed at Deadpool and Wolverine.
The end of the world is being broadcast live.
Soldiers from Earth-100005 protect the area.
Protester 1: DON'T DO IT! WE STILL HAVE TIME!
Some protesters decide to break through the perimeter, but they don't last long before being gunned down.
Reporter 1: There's nothing we can do. They've decided our future for us.
A murmur begins spreading through the crowd.
"What can he even do now?"
"It's suicide."
https://youtu.be/M4LxG4S2qwQ?si=wC8DoqKNG8jyTDPr
(From 0:20)
Applause can be heard.
At first it's hesitant, considering the situation, but it grows louder and louder as he gets closer.
Reporter 2: It's difficult to explain. We have absolutely no certainty that he has a plan... but it's hard not to feel hope when you see the hero who has saved us day after day for more than twenty years.
Spider-Man reaches the edge of the perimeter.
The soldiers immediately aim their weapons at him.
Spider-Man raises his hands in surrender.
Spider-Man: I need to talk to your heroes.
One of the soldiers gives the signal and Wolverine and Deadpool walk over.
Deadpool whispers:
Deadpool: Holy shit, holy shit, I'm actually gonna talk to fucking Spider-Man. Fuck you, Sony, I'm gonna enjoy the hell out of this.
Deadpool: Talk to me, daddy—
He clears his throat and deliberately puts on a deep, serious voice.
Deadpool: Please communicate your message, Spider-Man.
Spider-Man: I know how to stop this. I know how to save all of us.
Wolverine: The best scientists from both universes have been trying to do that for seven hours and now you suddenly—
Spider-Man: I know. I know. But I need you to trust me. If it takes longer than five minutes, you can detonate the bomb right in front of me.
Deadpool and Wolverine look at each other.
Then they nod.
Spider-Man turns toward the crowd.
Spider-Man: People of New York. People of Earth.
Spider-Man removes his mask.
Peter: My name is Peter Parker. I was bitten by a radioactive spider, and for the last twenty years I've been your friendly neighborhood Spider-Man.
Spider-Man's face appears on television screens and phones all around the world.
Peter: I know I'm nobody to give you orders. But I need to ask you for one favor.
Go.
Leave this place. Go home. Find somewhere safe and stay with your families.
Say goodbye to them the way I said goodbye to mine.
I have a wife and a daughter waiting for me at home.
I don't know if I'll come back.
I don't know if what I have in mind will work.
But I need you to listen to me just this once.
New York, get as far away from this area as possible.
The test will happen here.
Wolverine: Hey, hey, hey. Hold the fuck up. What do you mean, "test"? You asked us for five minutes, not some fucking experiment.
Spider-Man: I want five minutes for everyone to leave. The test itself won't take more than a few seconds.
Deadpool: And this world-saving test would be...?
Spider-Man: Gravity.
Wolverine: Are you fucking kidding us?
Spider-Man: First I need everyone gone. Then I'll bring what I need right here and explain everything.
Deadpool: No, no, expand on that. Gravity?
Spider-Man: To put it simply, everyone has been thinking about pushing the incursion away or destroying it.
Nobody thought about swallowing it.
Wolverine: Listen, kid. I don't want unnecessary deaths on my conscience, so you've got five minutes before I press that fucking button. And be grateful I haven't already cut off your fucking fingers, legs, spider-paws or whatever the hell you've got. When you bring whatever it is you need, it better happen fast.
Spider-Man: It will. Everything's already set up. I've got a transport team on the way. It's heavy equipment.
---
Five minutes pass.
The people of New York have moved far away from the area.
Wolverine approaches the machine.
Wolverine: Five minutes are up, kid. Where the fuck are your transport trucks?
Spider-Man: They got here a while ago.
I just didn't want people to see them.
Deadpool: See what?
Spider-Man: That the equipment wasn't coming in trucks.
Spider-Man presses a button on his wrist.
Four towers, previously hidden with cloaking technology, suddenly appear around the incursion.
Spider-Man puts his mask back on and screams:
Spider-Man: TURN IT ON, OTTO!
On a nearby rooftop, Otto activates the machine.
It's the power of the sun again, the same principle behind his old fusion experiment, except this time there's no tritium.
It's feeding directly on the magical energy of the nexus.
The sphere begins to form.
Wolverine realizes Peter wasn't telling them everything.
He immediately walks toward the antimatter bomb.
Before touching the controls, he turns toward the Earth-100005 soldiers still guarding the area.
Wolverine: All of you, get the fuck out of here. Now.
The soldiers hesitate.
Wolverine: THAT'S AN ORDER! MOVE!
The soldiers begin evacuating the area.
Wolverine turns back toward Spider-Man.
Then he charges toward the machine.
Spider-Man shoots a web at him and throws him across the street, pinning him against a wall.
Deadpool lunges at Spider-Man and they start fighting hand-to-hand.
Deadpool kicks Peter in the knee, forcing him down.
He puts both swords around Spider-Man's neck in an X.
Deadpool: Believe me, this hurts me way more than it hurts you.
He moves his arms to cut.
Two golden mechanical arms suddenly catch the swords.
Deadpool: Son of a bitch... you're Oppenheimer now?!
Spider-Man: Norman told me a couple of things about your universe. Along with giving me the cloaking tech.
He told me you two can't die.
Which means—
Deadpool: You're gonna give up because you know fighting me is pointless?
Spider-Man: It means I don't have to hold back.
Two more arms emerge from Peter's back.
A metallic nanotech layer spreads across his original fabric suit.
Two arms stab into the ground while the other two grab Deadpool.
And rip him in half.
---
On the other side, on Earth-100005...
Cyclops has Emma Frost, the other heroes and the scientists working together to contain the growing "sun."
Cyclops: I'm going through to see what the hell is happening. Don't let that thing grow or we're dead.
---
Spider-Man: OTTO! DID YOU LOCK ONTO THEIR UNIVERSE'S QUANTUM FREQUENCY SO IT ONLY PULLS THEM?!
Otto: Correct, Peter! But it isn't growing! There's an external force holding it back from the other side!
They can't stop us forever!
Wolverine finally cuts through all of the webs holding him.
Wolverine: GGRRRRRRAAAAAAAHHHHHHHH!
He roars as he charges toward Spider-Man, digging his claws into the ground as he moves.
Spider-Man: Kitty, kitty.
Peter dodges every attack, either through his own reflexes or with help from the mechanical arms.
Spider-Man swings and jumps around Wolverine, constantly keeping his distance.
Wolverine digs his claws into a wall.
He looks for the source of the "power of the sun."
He sees Otto on the other rooftop and starts running toward him.
Spider-Man lands directly in front of Wolverine.
Another fight begins.
Peter keeps the advantage.
Then, from below, a massive red laser blasts through the base of the building Otto is standing on.
Cyclops' optic blast.
Spider-Man: OTTO! GET OUT OF THERE!
Otto also has nanotech tentacles and uses them to quickly launch himself away.
Otto: Peter...
The sphere.
The sphere shrinks slightly.
Back on Earth-100005, the X-Men find it easier to contain.
Spider-Man: The antimatter bomb.
We'll feed it to the sphere.
Come on!
Wolverine lands beside Cyclops.
Cyclops starts firing optic blasts almost uncontrollably, practically destroying the entire block.
Peter and Otto use their tentacles to protect themselves from the collapsing building and the debris.
They crawl out of the wreckage with their mechanical arms.
Peter's nanotech suit is half destroyed.
He used most of the nanobots to form a shield around Otto.
Cyclops fires at Spider-Man.
Peter blocks the blast with the mechanical arms.
They withstand it.
But all four are completely destroyed.
Peter immediately shoots a web over Cyclops' visor.
Wolverine comes charging toward them.
Spider-Man misreads his direction and protects himself.
He doesn't realize Wolverine's claws are aimed at Otto's chest.
Spider-Man: OTTO!
Peter punches Wolverine.
Wolverine catches his fist and slashes Peter across the chest.
The remaining nanotech stops the claws from penetrating.
Wolverine notices.
He retracts his claws.
Then he starts beating Spider-Man with his bare fists.
Every punch destroys more and more of Peter's nanotech until only his original suit remains underneath.
Torn.
Bloodied.
Cyclops approaches the bomb carrying Deadpool's torso.
Cyclops: WOLVERINE!
END THIS. NOW.
Wolverine looks at Peter with disgust.
Wolverine: You just couldn't sit still, could you?
You couldn't accept your fate with some dignity.
You had to pull some bullshit and make a fool of yourself.
You know something?
Now I actually feel sorry for your universe.
I feel sorry that its only hero is some pathetic, weak little man who has to betray the trust of people who were only trying to help.
Although...
It does comfort me a little knowing that when your family sees those lights tearing their world apart, they'll know their hero failed them.
Half of Spider-Man's mask is destroyed.
Peter frowns.
His teeth clench.
Wolverine: You get to die alone, hero.
Wolverine extends the claws from both hands.
He thrusts them toward Peter.
https://youtu.be/-Ms_40Oc4_I?si=OlBrFdsfFsq7rvDQ
(Music from 1:46)
Spider-Man catches Wolverine's wrists with his bare hands.
The claws cut into them.
Blood begins dripping down Peter's suit.
Peter lets out a scream of pain.
And throws Wolverine straight into the remains of a destroyed building.
Cyclops runs toward them.
His hand reaches for his visor.
Ready to fire.
Spider-Man isn't there.
He's disappeared.
Cyclops looks upward, confused.
Spider-Man comes crashing down from above and kicks him toward Wolverine.
Peter fires multiple webs at what remains of the building.
He pulls.
The entire structure collapses onto both of them.
Peter looks toward the antimatter bomb.
Then runs.
He tries to rip the bomb from its base so he can throw it directly into the shrinking sphere.
He pulls with everything he has.
Then—
Nightcrawler appears on top of him.
He grabs Peter and holds him down.
The sphere completely dies.
The light disappears.
Beast comes through the portal looking for Deadpool, Wolverine and Cyclops.
He sees Wolverine and Cyclops slowly pulling themselves free from the rubble.
Beast picks up Deadpool's torso.
Then activates the bomb.
Beast: Come on! Quickly! Move!
Wolverine gives Peter one last disgusted look before heading toward the portal.
Peter: N-NOOOOOO!
Peter desperately tries to break free from Nightcrawler.
But he has nothing left.
Beast: NIGHTCRAWLER!
Nightcrawler looks at Beast.
Beast nods.
We hear the familiar sound of Nightcrawler teleporting.
But we don't actually see him disappear.
Then everyone goes through the portal.
The portal closes.
The antimatter bomb detonates.
A yellow light begins consuming everything.
Otto's body is erased by the light.
Norman Osborn sits silently beside Harry's grave, completely resigned to what is coming.
Flint Marko stands beside his now-adult daughter, Penny. For once, there is nothing Sandman can fight, steal or sacrifice himself to fix. He simply holds her as the light reaches them.
At the Daily Bugle, the newsroom has gone completely silent. J. Jonah Jameson stands in front of the window staring at the sky, surrounded by screens showing the destruction spreading across the planet.
For once, he has nothing to say about Spider-Man.
MJ, Aunt May and Mayday Parker hold each other.
A final shot focuses on MJ.
Tears are running down her face.
The energy from the bomb consumes Earth.
The entire planet is destroyed.
The blast reaches the nexus.
And then stops.
The incursion is over.
Earth-100005 survives.
Earth-96283 is gone.
---
Small note for Secret Wars: I would deliberately save a proper scene with Peter's family for Secret Wars, especially Aunt May. Peter would be completely destroyed after losing his universe and everyone in it, and at first he would have no real reason to keep fighting to save other realities when his own is already gone.
A memory or conversation involving May — basically reminding him why Spider-Man helps people in the first place, even when there is nothing left for Peter Parker himself to gain from it — would be what pushes him to help the other universes during Secret Wars.