10 minutes earlier—

In the lab room, Bruce Banner is on a metal table/gurney-like apparatus where he is splayed out and bound by metal restraints around his wrists and ankles. They raise and position the table so that he's laid out vertically and in front of the portal gateway.

"What are you doing to me, Giovanni?" said Bruce to Giovanni as he stands next to him. "What are you doing to me now?"

"Patience, Banner. Patience." said the Team Rocket Boss.

"I don't have any more patience… with you or your team." Bruce Banner irritably verbalizes, showing that he's had enough of doing their dirty work. "You know I will Hulk out and…"

"Save your strength, Bruce." Giovanni interrupts. "You're going to need it."

Giovanni walks to one of the computer technicians, checking on their progress.

Giovanni: "How are we doing?"

Team Rocket computer technician: "The power fluctuations are becoming steady; we should be ready to activate the portal momentarily, sir."

Giovanni: "Excellent."

Team Rocket Grunt #6: (From Giovanni's comm, panicking) "Sir. Sir! Giovanni, sir, can you hear me?!"

Giovanni: (Pressing the comm in his ear, annoyed) "What… is it?!"

Team Rocket Grunt #6: "THE HULK IS IN THE BASE! I REPEAT, THE HULK IS IN THE BASE!"

Everyone in the room — the computer scientists, the Team Rocket lackeys — get a shocked look on their faces; more so Bruce and Giovanni. They all look at Bruce Banner, but Bruce turns his head side-to-side to all of them, appearing just as bewildered.

Giovanni: "What!? That's impossible! Banner is right-"

From the comms, Giovanni and the rest can hear roars, Pokémon cries, and shouts of panic. The boss' eyes widen in shock; his mouth wide agape. Banner starts to shake in horror and he says with a mix of worry, concern, and regret in his voice.

"No."

Giovanni has a spaced-out look in his face. He slowly takes his finger off his comm and puts his hand back down to his side. His voice trembles when he says softly to himself,

"No."

The lab door automatically opens. Everyone turns to face the doorway (except Bruce, who's positioned facing away from it) and gasp when they see the Hulk standing in the hallway outside the room facing the Team Rocket leader and his villainous followers. He takes a step in the lab and almost everyone gasps and takes a step back. One of the grunts grabs a Pokéball strapped to his belt, but Giovanni stops him when he tries to throw it. The grunt puts the Pokéball back on his belt. Hulk walks in the room and looks around, while Team Rocket and Bruce start to get anxious of what Hulk will do next. Hulk says almost curiously,

"Hulk… remember."

He then has a flashback of him attacking and being attacked by Arceus and the other legendary Pokémon in and outside the lab room. Bruce is busy trying to get unstrapped as Hulk walks by him, not even bothering to glance to his left. The Team Rocket computer scientists and minions slowly and fearfully move towards the door so that they can bolt out of there as fast as they can.

Team Rocket Grunt: (to Giovanni) "Sir, can we please get out of here?"

Giovanni: (gritting teeth) "Not yet."

Bruce is still busy trying to loosen the restraints. He unexpectedly sneezes. Hulk looks behind him and sees Bruce Banner strapped to the gurney. This is the first time Bruce Banner and the Hulk are meeting each other face-to-face.

Hulk: "Banner…"

Bruce Banner: (frightened) "Oh my god. I can't believe it. How can this be?"

Hulk roars and picks up the gurney Bruce is strapped to and throws it through the portal gateway, crashing Bruce into the wall.

Team Rocket Grunt: (to Giovanni, Apprehensively) "Now?"

Giovanni: "Now."

Now's their chance; they run like hell out the room. Hulk turns to see them leave, but turns his attention back to Bruce when he starts groaning in pain. The impact broke the gurney Bruce was bound to; he crawls out of the apparatus and onto the ground. He grabs the wall for stability to pull himself up and stand. As soon as he does, Hulk grabs Banner by the throat and pins him to the wall.

Hulk: (intimidatingly) "Hulk hate puny Banner. Banner weak. Hulk SMASH puny Banner!"

Hulk squeezes Bruce's neck; Banner starts to choke and in his anxiety, his eyes turn green. Bruce kicks him halfway across the room. As soon as he gets up, he sees Bruce transform right before his eyes; Banner is in pain, he turns green, and he becomes taller and muscular until he looks like… well, him. Hulk couldn't believe his eyes; he is starting to understand that he and Bruce Banner are the same person. He says to his past self, almost sounding flabbergasted,

"Banner… Hulk?"

The past Hulk lunges at his future counterpart without hesitation and punches him through the wall. Future Hulk starts to get angry and hits him (well, his past self) back, sending him flying across the room.

(Past) Hulk: "HULK SMASH!"

The two Hulks roar at and (try to) stare each other down. They then leap up to attack. In the hallway, Giovanni and the rest of the people in the room are running to the exit. Giovanni turns on his comm to tell everyone in the facility to evacuate immediately, including the grunts holding Lucas and Brendan hostage. At first, the grunts are confused as to why they're evacuating the building without an explanation. They then hear Hulk's roar, crumbling concrete and clanging metal. The Hulks crash through the side of the wall right in front of them and continue brawling. The Team Rocket grunts push the kids down and they turn around to run away in the opposite direction, panicking and whimpering, and then screaming.

Team Rocket Grunt #7/8: "Oh, forget this!/He's your problem now!"

The trainers get up and observe "two" green giants duking it out on each other. One of the Hulks slam the other through four rows of walls; the other Hulk charges after him.

Brendan: (confused) "Uh… what the heck just happened?"

Alarms blare from all around the building. Lucas and Brendan are disoriented by what's happening, then they feel a small earthquake. They look around and see the walls starting to crack; part of the wall above them break apart into fragments. The trainers cover themselves up from the falling debris. Outside the building, Giovanni and company arrive at a large field as they exit the forest where there are four helicopters on their helipads.

Team Rocket Grunt: (getting into the helicopter) "With those two together, they can demolish the whole building in fifteen minutes – ten tops!"

Giovanni: "Then let's get a move on!"

Team Rocket Grunt: "Yes, sir!"

Everyone gets into the helicopters and they take off. Giovanni can only watch from the door window as his facility starts to crumble and explode from the inside out. He looks away from it, then he closes his eyes and hangs his head in shame.

BINOCULAR P.O.V: Looking at the mini squadron of helicopters flying away, then looks at the Team Rocket HQ itself – now in rubble and smoldering with smoke billowing up.

It's Silver! He is looking at this all (with binoculars) from far away: standing on a cliff overlooking the (former) Team Rocket HQ.

Silver: (smirking) "Well, well, well, dad, it looks like another one of you plans got blown up in smoke." (Puts down the binoculars) "I better get a closer look."

5 minutes later—

Hulk suddenly appears from a bright, white silhouette in the (now destroyed) lab. Hulk walks aimlessly in the room, trying to figure out what happened. A voice – a familiar voice – says, "Hey, Hulk! You did it!" Hulk turns around to who said that; he sees Lucas and Brendan, but he's mainly focused on the Legendary Pokémon behind them: Entei, Suicune, Raikou, Zapdos, Articuno, Moltres, Regirock, Registeel, Regice, Regigigas, Mewtwo, Mew, Jirachi, Celebi, Ho-Oh, Deoxys, Lugia, Uxie, Azelf, Mespirit, Rayquaza, Groudon, Kyogre, Heatran, Cresselia, Phione, Manaphy, Shaymin, Arceus, Latios, Latias, Dialga, Palkia, and Giratina. Hulk soon becomes incensed when he sees them.

Hulk: "Monsters… Hulk… enemy."

Lucas: (concerned) "Uh-oh."

Brendan: (concerned) "Not good."

Hulk roars and charges at them to attack. Darkrai intangibly rises up from the ground in front of the group. It uses Dark Void on Hulk that knocks it out immediately. Hulks falls, but because of his momentum from running, he skids until he (literally) stops right at Brendan and Lucas' feet. They both look down at Hulk snoozing and then glance at each other.

Brendan: "Huh. Well, that sure made things easier."