[Steve and Sam arrive outside the chamber. Red emergency lights flash all around. There are many agents slumped on the floor. All of them out cold.]
Monica: Help me. Help.
Steve Rogers: [Steve finds Monica in a heap inside the chamber.] Monica? [he grabs Monica and shoves her against the wall.] What do you want?
Monica: For the world to not need you anymore.
[As Sam enters Bucky swings his fist which smashes through the wall as Sam ducks. Bucky grabs him by the jaw and throws him at the open pod. Steve lurches into the fight and lands a punch which Bucky barely feels. Bucky kicks and punches Steve out of the chamber. A punch from Bucky goes through the elevator door. Steve blocks the next one but the power of Bucky's fist sends Steve tumbling into the darkened elevator shaft.]
[In the chamber Sam comes around and spots Monica looking down the elevator shaft.]
Man on PA #1: Der Ostflügel ist kompromittiert. Ich wiederhole: Der Ostflügel ist kompromittiert. (The east wing is compromised. I repeat: the east wing is compromised.)
Sam Wilson: Hey.
[Monica bolts, Sam rises. At the bottom of the shaft Steve pushes himself off the floor.]
[In the control room.]
Everett Ross: Evac all civilians. Get me a perimeter around the building, and gunships in the air.
Natasha Romanoff: Please tell me you brought a suit.
Tony Stark: Sure did. It's a lovely Tom Ford, three-piece, two-button. I'm an active-duty non-combatant.
Shadow: Don't worry, If he tries anything I'll subdue him. Nothing can stop the ultimate life form.
Tony Stark: Easy there tic-tac.
Sharon Carter: Follow me. [Sharon runs past Shadow, Tony and Natasha.]
[Sam chases Monica up a stair well.]
[Steve starts to climb the elevator shaft.]
[Bucky stalks through the building's ground floor. He batters two guards. With tech-glasses on Tony takes cover behind a pillar.]
Natasha Romanoff: [on radio:] We're in position.
[Tony taps a wrist-control which becomes his Iron Man-glove. He zaps Bucky with a stun-burst before Bucky can shoot a guard. Tony rushes him, firing again. Bucky ducks the blast then trades blows with Tony, firing the gun. Tony has the Iron Man-glove over the barrel, blocking the bullet. He pulls the gun barrel loose then Bucky smacks him backwards. Sharon rushes Bucky, then Natasha rushes Bucky. They both land kicks and punches, then Bucky flips Sharon head over heels. She smashes onto a table then Natasha leaps on Bucky, legs around his neck. He slams her onto another table and grabs her throat.]
Natasha Romanoff: You could at least recognize me.
[T'Challa comes from nowhere and kicks Bucky off Natasha. He fights with Bucky, landing lightning fast kicks and some punches. Bucky gets a counter punch in and T'Challa falls, but quickly recovers. Shadow teleports behind him and attempts a roundhouse kick but Bucky saw this coming and grabbed his leg and tossed him into a wall. Bucky hurries up some stairs. T'Challa leaps the levels and vaults a railing, landing in front of Bucky. Limber T'Challa spin-kicks and grabs Bucky's metal arm which he tries to twist then looks worried as he realizes it isn't going to work. He throws Bucky backwards and keeps hold as they both tumble down the stairs. They resume fighting on the small landing and a leg sweep sends Bucky over the railing. T'Challa leaps down after him but finds the wide reception empty. He scans around.]
[Outside staff flee the building en masse. Sam is among them and quickly spots something on the ground. He picks it up.]
Sam Wilson: Damn it. [he looks around the wide courtyard and scowls.]
[Bucky's on the rooftop helipad. He marches up to a blue chopper and pulls the lock off the door. he gets in the pilot seat. Steve rushes outside and sprints toward the rising chopper. He leaps and grabs the landing gear. Muscles bulging Steve pulls hard and the chopper struggles to gain height. Steve's feet kick for traction then he gets them flat on the helipad. The chopper drags him onto the weak looking mesh framing the helipad. Steve grabs the railing with one hand and clings to the landing gear with the other. He grits his teeth and his neck strains with the incredible effort. Bucky lowers from inside the chopper then throws the joystick left and the chopper's nose slams into the edge of the helipad. The rotor-blades are smashed to pieces and Steve ducks as the tail swings around. The chopper lies twisted on the mesh at the edge of the pad. Steve rises beside the canopy. Bucky's arm smashes through the glass and growling he grabs Steve's throat. The chopper starts to list over the edge. The tail breaks off and falls into the river below. Bucky keeps hold of Steve as the whole vehicle drops and slams into the river. The impact seems to knock Bucky out cold and he lets go of Steve. The body of the chopper sinks quickly to the riverbed along with other debris. Steve surfaces with Bucky in his arms.]
Airport
At the airport, Monica contacts George for an update.
George: Did it work?
Monica: Exactly as predicted.
George: Good.
Monica: How are you feeling?
George: I've never felt better. You know when I was young I found an orphaned wolf cub on the outskirts of our farm. Dad said it was too dangerous. He told me to get rid of it. I fed that cub. I named him. I watched him play with my beloved dog Darwin. I felt that if I could instill rules, the proper boundaries, I could harness the raw power of that beast. A few months later while hunting. The adolescent cub turned on me. Snarling, frothing at the mouth. Darwin bought me a few precious moments to call for help. My dad shot the wolf. But it was too late. Darwin had been torn to pieces.
Monica: Why are you telling me this?
George: Because I'm going to try again, but with these heroes. I won't make the same mistake twice. I won't underestimate them. And they won't underestimate me.
[The call ends]