Avengers Compound, inside
Tony carefully places the stones in the gauntlet he made while Bruce, Rocket, Don, and Plankton watch after they made it along with him. With nervous precision, Tony manipulates the machine and carefully places all six stones into the gauntlet.
Rocket: Boom!
Tony, Don, and Bruce jump a bit while Plankton fell to the ground, and quickly groan at Rocket's joke.
Don: Not funny, Rocket!
Plankton: Don't scare us like that!
Moments later, in another room with the new finished gauntlet. Everyone is gathered around it.
Sonic: That's one strange-looking glove, which Thanos wore a few years ago.
Raph: Come to think of it, this is definitely nanotech.
Amy: But it's not made of Uru!
Don: I think Raph's right about that. It is nanotech!
Rocket: All right. The glove's ready. Question is, who's gonna snap their freaking fingers?
Thor: I'll do it.
Shadow: Huh?
Tony: Excuse me?
Thor: It's okay.
Tony: (as he and Steve hold up Thor) Stop. Stop. Slow down.
Steve: Wait, wait, Thor, just wait. We haven't decided who's gonna put that on yet.
Jet: Yeah. We're just dealing with some deadly and powerful objects in the universe.
Thor: I'm sorry. What, we're just sitting around waiting for the right opportunity?
Scott: We should at least discuss it.
Thor: No, no, sitting here staring at that thing is not gonna bring everybody back. I'm the strongest Avenger, okay? So this responsibility falls upon me. It's my duty.
Blaze: I wonder if that would happen when this occurs.
Kirby: Well Carol is currently on another planet just to think of it.
Tony: It's not about that...
Caliburn: Not to mention who is going to wear it just like Sonic did.
Thor: (hushes everyone up) It's not that... Stop it! Just let me! (he tears up) Just let me do it. Just let me do something good. Something right.
Tony: Look...It's not just the fact that that glove is channeling enough energy to light up a continent, I'm telling you, you're in no condition.
Thor: What do you... What do you think is coursing through my veins right now?
Rhodes: Cheez Whiz?
Knuckles: Uh, not really.
SpongeBob: Maybe bubbles.
Shadow: Nope!
Thor: Lightning.
Tony: Yeah.
Bruce: Lightning won't help you, pal. It's gotta be me.
Amy & Blaze: Huh?!
Silver: What do you mean?
Jet: These stones are like poison or something compared to any other being.
Bruce: You saw what those stones did to Thanos. It almost killed him. None of you could survive.
Steve: How do we know you will?
Shadow: They're dangerous, but there's a type of radiation in them.
Bruce: We don't.
Amy: Why's that?
Bruce: I think Jet and Shadow might be right about the stones. But the radiation's mostly gamma. (He takes a good look at the gauntlet) It's like...uh...I was made for this.
Meanwhile near the Quantum Tunnel, unknown to the group, the past version of Nebula began to sabotage the time machine in order to bring Thanos and his army from 2014 to the present.
Back to the room where the Avengers gather around Bruce as he is prepared to wear the Nano Gauntlet.
Tony: Good to go, yeah?
Bruce: Let's do it.
Tony: Okay, remember, everyone Thanos snapped away five years ago and you're just bringing them back to now, today.
Silver: In other words.
Tony: Don't change anything from the last five years.
Bruce: Got it.
Scott and Rhodes put on their helmets, Rocket puts on his goggles, Don, Kirby and Jet also put on their goggles, Thor gets Rocket behind him, Leo, who held his swords in front of him in X formation, Sonic who uses his shields as well and also to protect Caliburn, Amy holds out her hammer, Silver uses his psychokinetic shield to protect himself, Blaze, Shadow, Plankton, and Rouge, who used one of her wings, Mikey, Knuckles, SpongeBob, and Raph put on their sunglasses, and Tony activate his advanced nanotech Iron Man Mark LXXXV Armor and conjured an energy shield to protect Clint and himself.
Tony: F.R.I.D.A.Y., do me a favor and activate Barn Door Protocol. Will you?
F.R.I.D.A.Y.: Yes, boss.
The New Avengers Facility goes on lockdown.
Bruce: Everybody comes home.
Bruce puts on the gauntlet, which nanobotically expands to fit his hand.
Sonic & Blaze: (seeing Bruce put on the Nano Gauntlet) Here we go!
Everyone stood there where they were as Bruce places the gauntlet in his right hand, and the power surge overwhelms him. He grunts in pain.
Jet: Oh, no! His arm.
Rouge: This doesn't look good!
Thor: Take it off! Take it off!
Steve: No, wait. Bruce, are you okay?
Leo: I think he's got it.
Tony: Talk to me, Banner.
Sonic: Come on, Hulk.
Bruce: I'm okay. I'm okay.
Jet: That's good.
Back to 2014 Nebula, who is opening the Quantum Tunnel and brings the Sanctuary II to the present.
Back at the room, Bruce still screams in pain.
Sonic & Silver: Come on, you got this, Bruce!
Amy: Snap those fingers!
As Bruce is fighting through the intense pain coursing through his body courtesy of the gauntlet, and manages to snap his fingers. He faints and the gauntlet slides off his arm, Clint kicks it away while SpongeBob uses a fire extinguisher at the gauntlet.
Steve: Bruce!
SpongeBob: Are you okay, Dr. Banner? (He extinguishes the burns on Bruce's scorched arm and also the gauntlet.)
Tony: Don't move him. (He cools down Bruce's scorched arm as Bruce wakes up.)
Knuckles: Well that did the trick.
Bruce: (he holds onto Steve's arm) Did it work?
Thor: Worth a shot. It's over. It's okay.
Don: I think we're about to find out if it works.
Scott, Mikey, and Plankton walk toward the outside windows and see the plants and birds, which they are chirping. Clint hears his phone ringing and sees it's his wife calling.
Clint: (struggling to speak from sheer happiness) Honey.
Laura: (on the phone) Clint?
Clint: Honey.
Scott: Guys... I think it worked!
Plankton: YAY! We did it!
Mikey: Hooray! It looks like everybody is coming back.
Rouge: (her radar goes off) Huh? Uh oh!
Amy: What's wrong, Rouge?
Raph: I'm guessing that's her Bat Sense is tingling.
Jet: What is it?
Rouge: Something's here! Something bad!
Kirby: What do you mean?
Rouge: We gotta move now.
Sonic: Now let's get out of here.
As anyone realize that their mission has been a complete success, Bruce opens his eyes and sees the Sanctuary II up in the sky and a single missile heading towards the base blowing away Scott away. Then a continuous array of missiles destroys the base completely and everyone sinks below to the underground.
Lower Level, inside
In the ruins of the compound, on the lower level, Rhodes, Rocket, Amy, Rouge, and Don were pinned down Bruce protected them by holding back the collapsing rubble.
Rouge: What just happened?!
Don: I don't know, Rouge. But something from the sky just attacked us and separated us from the team.
Amy: It feels like one of us messed with the timelines.
Rocket: I can't breathe. I can't breathe! I can't breathe.
Rhodes: Canopy. Canopy. Canopy. (He gets out of his water damaged suit)
Rouge: Oh, no! Rocket's gonna be crushed in a matter of seconds.
Bruce: Rhodey, Rocket, Amy, Rouge, Donnie, get outta here!
Rhodes crawls over to help Rocket while taking a rebar as leverage to lift the debris off Rocket while Don lifts.
Rocket: Hurry up! Hurry up! Come on!
Don: Hold on, Rocket! Just stay calm.
He and Rhodes get Rocket out and they all sigh in relief.
Rouge: What happened to your suit, Rhodes?
Rhodes: It sustained heavy water damage! Good thing Tony and I built another one just in case.
Bruce: Rhodey!
Amy: SURF'S UP!
However, Rhodes didn't react as the water from the Hudson River began to flood the area.
Elsewhere, Mikey, Plankton, and Scott, who shrunk himself, found themselves under some rubble.
Rhodes: (on comms) Mayday, mayday! Does anybody copy? We're in the lower level. It's flooding!
Scott: What? What?
Plankton: Rhodes, what happened?
Mikey: So what's your status? Come in?
Rouge: (on comms) Guys? Wherever you are? Help us!
Rhodes: (on comms) We're drowning! Does anybody copy? Mayday!
Scott: Wait! I'm here! Mikey, Plankton, and I are here, can you hear me?
Mikey: Let's go save them!
Plankton points to something.
Plankton: Look! I see Rhodes made another armor just in the one which took water damage.
Underground Area
Somewhere, Clint, Raphael, Blaze, Silver and Jet found themselves under some rubble, having fallen through to the underground of the New Avengers Facility. They recover from the impact of the explosion, as Clint turned on his flashlight on his wrist to see where he and his friends were.
Clint: Cap?
Raph: Leo?
Silver: Sonic?
Jet: SpongeBob? Kirby?
Clint finds the gauntlet is with him and his allies.
Raph: (sees the gauntlet) There it is!
Jet: (hears some growling noises) Listen.
Blaze: (points to something behind them) It's coming from over there.
They hear growling noises coming from beyond the halls coming from behind them. Clint drew his bow and quickly turned around, firing a flare arrow towards the movement, where he caught a glimpse of the Outriders that Thanos ordered to hunt down the Infinity Stones.
Clint: (under his breath) Okay.
Silver: We'll take care of this while you take the glove to safety.
Clint: Got it!
Jet: Come on! We gotta keep the stones away from Thanos.
Clint takes the gauntlet and runs with Jet, who on his Extreme Gear toward the opposite direction while the Outriders chase after them.
It looks like the Hulk had his chance to snap his fingers to bring everybody back to reality before Thanos attacked the compound. It looks like the battle against Thanos is just getting started.