Gwen's P.O.V

When I wake up I see that I'm now in the lower levels of the Avengers Compound with Clint.

Gwen: Clint, you okay?

He nods.

Clint: Yeah, I'm good. What about you?

Gwen: I've been better.

Clint pulls out a flashlight before turing it on pointing upwards.

Gwen: Y/N! Miguel!

Clint hands me the flashlight before grabbing the gauntlet.

He and I hear a noise and turn around.

I shine the flashlight in the direction the noise was coming from.

We then see a massive group of those space dogs we fought back in Wakanda.

Clint: Oh, shit.

Gwen: We've gotta run now come on!

Clint and I start running from the aliens chasing us.

Y/N's P.O.V

I wake up, and as my vision becomes more clear I stand to my feet and deactivate my mask.

I look around and see Tony standing up.

Tony: Hey Y/N, you okay?

Y/N: Yeah, I'm good.

I look around the floor and see Cap's shield and go over to pick it up.

I look over to see Steve unconscious on the floor.

Tony goes over and kicks him.

Tony: Come on, buddy. Wake up.

Cap wakes up.

Tony: That's my man.

Tony helps Steve to his feet and I go over to them.

Y/N: You lose this thing again  I'm keeping it.

He smiles.

Y/N: Kidding.

I hand him the shield.

Steve: What happened?

Tony: Well when you mess with time, it tends to mess back. You'll see, now come on.

The three of us go outside to see Thor looking down at Thanos.

Y/N: Damn it. Thanos is back, why can't it ever be easy?

Tony shrugs his shoulders.

Tony: So, what's he been doing?

Thor: Absolutely nothing.

Steve: Where are the stones?

Y/N: I don't know, but I'm willing to bet that the stones are somewhere under all this.

Tony: All we know is that he doesn't have 'em.

Y/N: Exactly.

Steve: Then let's keep it that way.

Thor: You know that's a trap, right?

Y/N: Yeah, but I don't really give fuck.

Tony: Me neither.

Thor: Good, just as long as we're all in agreement.

Thor summons both Mjölnir and Stormbreaker to himself and this causes him to suit up with the rest of us.

Thor: Let's kill him properly this time.

The four of us then walk down there to face Thanos for the second time.

(A/N: Just imagine Y/N is walking with them.)

Once we get closer to him he notices us coming towards him.

Thanos: You couldn't live with your own failures and where did that bring you? It brought you to me. I thought be eliminating half of all life, the other half would thrive. But you've shown me that's not possible.

Y/N: Yeah, we're human and all kinds of stubborn.

He smirks.

Thanos: Thanks to all of you I know now what I must do. Once I have the stones you have collected for me I will shred this universe down to it last atom and create a new one, teeming with life. That knows not what it has lost but what it has been given. A grateful universe.

Thanos stands and pulls his sword out of the ground.

Steve: A universe born out of blood.

Thanos: They'll never know it. Because you won't be alive to tell them.

Thor screams and Tony and go up in the air to attack Thanos.

I activate my mask and charge at Thanos.

I land on the ground Thor throws Mjölnir but Thanos knocks it away.

I manage to call Mjölnir to me and hit Thanos in the back of the head.

(A/N: Again, just imagine Y/N is there with them.)

Harry's P.O.V

I'm now stuck in the compound with Rhodey, Miguel, Bruce and Rocket while the compound is filling up with water fast.

Miguel and Bruce are currently holding up some concrete that fell from above to stop it from crushing Rhodey, Rocket and I.

Bruce: Rhodey, Harry, Rocket get out!

Miguel: We can't hold this much longer, guys!

The three of us look at each other.

Harry: We gotta move.

Rhodey: See you on the other side, guys.

Rocket: Yep.

We then hear Scott over the comms.

Scott: Hold on! I'm coming!

Y/N's P.O.V

As we're fighting Thanos Thor passes Mjölnir to me, Tony then lands infront of us.

Tony: Okay, Thor, hit me!

Thor summons lighting and fires it at Tony's suit, that powers up his repulsor blast that hits Thanos.

I them run towards Thanos to hit him up close.

Once I'm close enough Thanos grabs both Tony and I and let's us get hit by Mjölnir that was thrown by Thor.

This causes both Tony and I to be sent flying back and hit a pile of concrete, this alos causes me to black out briefly.

I wake up again I see Cap fighting Thanos alone.

He gets knocked away and his shield flies over, landing next to me.

I grab it and see Mjölnir nearby.

Y/N: Gotta try...

Third person perspective

Y/N raise his hand to call Mjölnir to him.

As he reaches out Mjölnir shakes slightly and he hears a voice.

The hammer flies to Y/N's hand as he stands.

He turns to see Thanos is about to kill Thor with Stormbreaker.

L/N throws Mjölnir at Thanos.

It hits the Mad Titan and flies back around, allowing Y/N to catch it.

Thanos turns to see Y/N holding Mjölnir and Cap's shield in each hand.

Thor smiles.

Thor: I knew it.

Thanos kicks Thor before turning to Spider-Man.

The two charge at each other as L/N spins Mjölnir around.

Y/N quickly jumps up and hits Thanos with Mjölnir.

(A/N: Just imagine it's Y/N in the Iron-Spider MK Two armor. Same for other gifs used.)

As Thanos stands Y/N throws Cap's shield, but Thanos knocks it away.

Spidey quickly throws Mjölnir at the shield, creating a shock wave to knock Thanos down.

He catches both Mjölnir and the shield as he charges at the Mad Titan.

Y/N lands multiple blows on him before throwing the shield at Thanos' head.

It bounces back and Spidey hits it with Mjölnir, sending it back at Thanos.

He then fires lightning at Thanos, knocking him down.

Y/N calls lightning from the sky and strikes Thanos.

Y/N's P.O.V

As Thanos struggles to recover I see Cap running over.

Y/N: Cap, heads up!

I throw both his shield and Mjölnir to him.

He catches both before going in to strike Thanos.

I guess he's worthy too.

Cap and I fight off Thanos together before Steve gets his shield broken and getting knocked away.

After that I continue fighting Thanos alone.

While I do that I start make jokes to annoy him.

Thanos grabs me by the throat and smashes me to the ground.

He lifts me up.

Thanos: I'm gonna crush you, bug.

Y/N: Well, actually spider's are technically classed as arachnids. So you'd actually be wrong in assuming...

Thanos: Do you ever shut up?!!

He throws me.

I slowly get to my feet before looking to Thanos.

Y/N: Sorry, but no. My fans expect a certain amount of quips in every fight.

He quickly throws his sword at me, but I jump over it.

I run at Thanos, but he hits me with a back hand, breaking part of my Nano-tech mask in the process.

This sends me back and I land next to Steve on the ground.