Part I

The Age of Ultron

Chapter 1: Tony Stark

Pain.

That was all she felt as she plummeted towards the ground. Her red cape fluttered behind her, torn and worn, while her outfit clung to her by threads. The red, gold, and blue outfit slapped around as the wind rushed around and past her, threatening to fly off her as she broke the sound barrier.

Her eyes barely hung open, and she felt the tears rushing from her eyes and evaporating from the heat wave forming around her. She choked and closed her eyes. She could feel the earth. She could feel it as she approached.

Kara wondered what would happen when she landed. Would she land in a city and incinerate the whole thing from how fast she was falling? Or would she hit a lake? A forest?

She heard honking. Voices. Cars.

A city. People. If she hit a building it would go down instantly.

But she didn't have the energy, the strength, to even move. She didn't have enough strength to open her eyes. She was beat. She had lost. She couldn't dare to think of how she let everyone down. How would Clark feel about her failure?

She felt herself speed up as gravity pulled her towards the planet. She felt the wind and heat eating away at her skin despite its invulnerability.

And then she knew glass, metal, and the cold ground slamming into her a full force. She felt the crater forming around her and choked on the dust that blasted upwards into the air from where she landed. She coughed.

She was still for a few minuets then slowly pushed up on her hands.

The sun was beating down on her with heat, and her hearing picked up the sounds of sirens and people screaming.

She sighed. People were going to rush to her to see what had happened. It wasn't surprising really. Not everyday does she get beaten bad enough to get thrown down to earth and form a crater in the middle of a city

Beaten.

She felt the hole in her heart. They had been beaten. All of them, to an emery more powerful than anyone they had ever faced. She remembered the faces.

Bruce. Hal. Diana. John. Robin. She remembered Clark falling to his knees in defeat. The water gathered in her eyes as she remerged him pushing her through the portal back to Earth before it closed.

Her teeth sank into her cheek. She had to be strong for the people of Earth. They needed hope. And Kara Zor El stood for hope just like her Cousin had.

Kara focused her energy. She let her skin absorb the sunlight, then used that to propel herself upwards.

Time for the media…

When she floated above the small ten foot creator she had formed she was surprised to see no one around. No cameras, no media, no reporters. No one. Well actually not no one. Instead of being pounded by the News Networks or other curious civilians she watched as people raced by on the streets, running away from something, running right by her. A few paid her glances but she wondered what on earth could possibly be making them run so fearfully that they completely ignored Supergirl?

It was then she heard the roars and snarls of a beast. It reminded her of Doomsday. With a grimace she rocketed herself up into the air, her tattered clothing ruffling violently. She stopped above the buildings and scanned the arid, dry city. She could see the smoke and hear gunshots in the African city.

She used her telescopic vision and zoomed in so she could pinpoint the screams. Dozens of people fled from the inner part of the city, and at the back of them tossing cars like pebbles and destroying literally everything in its path was a massive green raged monster.

Her heart fluttered.

Something about this creature made her uneasy. She had faced super powered beings over and over again but this one was different.

With a deep breath and steeled resolve she focused her energy and shot forward at supersonic speeds. The wind grabbed at her hair and tugged at the rags of blue and red that barely covered her, but it failed to affect her. She simply kept going and within a few minutes she soared right into the street where the beast was. She landed on a knee as the beast roared and tossed a small car into a building while a few civilians still tried their best to flee.

Kara glared at the beast as it continued its tantrum, throwing its arms everywhere, tossing boulders, cars, debris, and all sorts of things. Its massive hands wrapped around a huge chunk of concrete, spun around faster than she anticipated, and hurtled it at a group of people cowering next to a store across the street.

Supergirls eyes went wide and she blitzed over to the group of people. She caught the car just in time, her hands gripping the sides and bending the metal inward as she held the car up. She grit her teeth and put the car down in front of her.

"Get out of here!" She yelled at the civilians who stared at her with both gratitude and confusion.

A moment later something hit her head on with enough force that she went flying and slammed right into the side of a small building. The wall crumbled on top of her, but she shrugged off the large chunks of concrete and flew back into the street.

She glared at the green beast that stood a few feet from where she had just stood and slowly lowered herself to the ground. The monster roared at her and beat against its chest like an ape. She saw its bloodshot eyes and the tears streaming downs its face.

Then it charged her.

It's snarl and malicious growl forced her to step back and the beast reared back a fist. She raised her hands and caught the punch it sent for her. Despite her hands being the size of one of its fingers her strength held the creature back.

Her feet dug into he pavement below, breaking through it and sinking her into the ground. Kara's eyes went wide as her arms were slowly pushed towards her. She grit her teeth and pushed back, managing to equal the beasts strength and put it in a stalemate. The monster roared again, staring at her with hate and threw its other fist at her.

She quickly pulled one hand away from the first fist and blocked the second fist. She held the monster at bay, gritting her teeth as the torn red cape fluttered behind her.

Their eyes met and for a moment she thought she saw something like sorrow in the monsters eyes. Then it turned to sheer rage and snarled at her. Thats when she felt herself being pushed back again, when she felt the creature starting to overpower her.

Kara's heart sped up and she pushed back once then quickly slipped out of the way as the beast lurched forward and past her. Before she could move it turned around and slammed the back of its hand into her.

She rocketed backwards and crashed into a store, breaking through its front windows and flattening several shelves before she finally came to a stop \when she hit the back wall and flopped to the ground.

The young blonde looked up when she got to her knees. Her hair framed her face and she was forced to bottle up any frustration she had. She had hoped to put this monster down quick.

When the beast didn't come into the store she was surprised. She though it would've followed her so it could kill her. She took advantage of the monsters predatory lapse and blasted out of the store and back into the street.

Then she saw something that really caught her off guard.

A monstrous machine of red and gold stood at the other end of the street, parts floating down to it and spinning before they sealed together like a puzzle. It had glowing white eyes and a circular chest piece that also glowed white.

People continued to flee all around her and she readied herself to fight the new machine and beast when she saw the green monster was facing the machine and not her. She could let them fight and kill each other-

"You listening to me?" A voice started from the massive machine, interrupting her thoughts. She raised an eyebrow. It spoke english.

The machine continued, "That little witch is messing with your mind. You're smarter than her, you're stronger than her. You're Bruce Banner."

The beast roared and grabbed a car.

"Right don't mention puny Banner!" Then it sent the car at the man in metal. She watched as the machine caught it and the beast ripped through the car to sock the machine in the face. It tumbled backwards before catching itself on its knees. It propelled itself forward and slammed into the beast, grabbing its head and thrusting it against the ground and ripping the street in half as it drug the beast along.

Kara wondered if whoever piloted the machine would need her help.

She was answered when the monster kicked up and sent the machine flying down the street. It was then she intervened. She dashed forward and slammed both fists into its gut. She kept going, using her powers to carry them both forward and straight into a building. Then a massive hand wrapped around her waist and she was tossed like a doll through the building and back out into the air.

A quick gasp escaped her lips as she was thrown back into the sun but she failed to react as the beast leapt out from the building and up to her. It grabbed her and she yelped as it pulled her along and crashed them both into the roof of a nearby building. She coughed then was yanked upwards as the beast wrapped both hands around her and started squeezing.

Ribs popped, and her body strained as the beast squeezed the life from her. She focused and her eyes glowed red as two beams of energy shot out. They seared the beasts chest and it released her with a roar of agony.

Air flooded her lungs and she wheezed for a moment before looking up. The beast raised its hands and she zipped out of the way as its fists came crashing down. The roof where she had been collapsed and she raced back at the beast, socking it in the face, ducking under on of its own swipes, then crashed her elbow its its chest.

The beast returned another punch which she evaded, then tried to grab her. She slipped out of the way just in time, but it managed to back hand her again. Pain spiked through her left side and she soared down to the streets, crashing into an abandoned bus.

She groaned as she peeled herself off of the buses remains, then looked back up and saw the beast leap down towards her. She crouched and was about to launch herself at it when the machine from earlier slammed into the beast and sent both itself and the beast tumbling to the ground. The two rolled when they hit the street, and when the beast got on top the machine kicked it off. The beast roared as both got to their feet and the machine raised a hand where a beam of white energy blasted out and hit the monster head on.

"Hey little lady you shouldn't be out here!" The machine called out to Kara.

She opened her mouth to reply, but instead screamed with wide eyes, "Look out!"

The metal man was suddenly hit by a flying car and the beast rammed it head on with a shoulder, before punching it over and over again, metal shards and scraps flying in every direction.

Kara raced forward and hit the beast again with both fists head on. This time though the beast barely moved. She gazed up in shock then it grabbed her hair, enticing a scream from her, and smashed her into the metal man. It raised her up and slammed her back into the metal man. She gasped as the metal creaked under her body then was lifted up again, and for a third time was slammed back down into the metal man.

"Geez lady what're you made of vibranium?" The voice in the machine asked.

She didn't care to respond as she was lifted up, but before she was used as a rag doll again she let loose two more beams of red. The heat scorched the beast and it roared in pain, but didn't release her. She narrowed her eyes and slammed both fists into its wrist as she fired a second round of heat beams at it.

Then beast released her after both attacks and she blitzed right at its chest, crashing her foot into it, then as it stumbled back flew forward, and after raising both hands above her head, brought them down on the beast.

It yelped and slammed face first into the street. But it wasn't down, and Kara barely managed to raise her hands as a slab of street was thrown into her.

She went flying and crashed back down into the street a block down. She shook her head and wiped the smudge of blood from her mouth before flying back up a few feet. The metal man had reengaged the beast and was managing to hold its own until the monster used a pole to skewer the metal mans arm, and the beast roared as it pushed the machine down and started to tear its arm apart.

A sonic boom echoed out as Kara raced forwards. She pulled a fist back but suddenly, a foot away from the beast, a green hand smacked her like a fly and sent her flying into the nearest building.

The walls and debris fell on her and a moment later she pushed the massive amounts of debris off her. She dusted herself off then flew back out into the open and saw the Machine standing once again. The beast was down the street, and she watched in amazement as a new arm flew down from the sky and reformed around the machine, making a brand new arm for it.

"That's better." The machine stated stretching its new arm.

Again the monster roared and got to its feet, snarling and throwing a tantrum.

"Here we go." Kara sighed. She huffed then shot forward. She slammed into the beast again, this time hitting its leg with her elbow then flying up and uppercutting it. The beast went flying into the air and she raced after it, raising her hands above her head, then with a yell brought them down on the beast.

A crack rang out and the beast flew downwards and into the street, obliterating anything within a ten foot radius.

Fist pulled back, she blasted downwards with lightning speed and broke the sonic barrier as she brought her fist down on the beast.

Suddenly her momentum jerked to a halt and her body snapped forward as her hand was stopped in its tracks by a much larger green hand. Her eyes went wide as she saw the beast grinning at her from below. It started to tighten its grip on her small hand and Kara tried to fly away. The grip was too tight and the beast yanked her back to it, slamming its other fist into her head.

Lights floated around her and she felt her head spin as her vision started to turn black. She felt the wind as she flew through the sky and crashed right into a office building, ripping through the walls and smacking into the desks with bone crunching force.

A few moments passed. Kara blinked over and over again. She tried to focus herself and forced the darkness threatening to consume her away. It took longer than she hoped but she eventually got the darkness to leave her and she felt energy return to her body once the threat of passing out was gone.

"Dang," She groaned getting to her feet. Only Doomsday, Darkseid and Clark hit that hard. With a quick brush of her hands she adjusted her skirt and pushed her cape behind her. She could hear a fight and raced out to the streets again.

The Machine and beast were going at it, throwing punches, lasers, kicks, and all sorts of moves as they tried to rip each other apart.

Kara pursed her lips and clenched her fists as she heard the terrified screams of people that were trying their best not to get crushed by the two dueling monsters.

She had to end this fight.

Her mind raced, trying to come up with ideas of how to stop the monster. It could take her punches head on, and it was as durable as she was, if not more so.

Then how to stop a rampaging monster?

She looked down at the machine as it was tossed through a building and the green monster raced after it. The two knew each other. She got that much from the way the machine's operator spoke to the monster. Maybe the machine knew how to take it down.

Slowly she followed them from above, watching the battle, watching as machine and monster fought tooth and nail, watching for any sort of weakness. She watched as they tore each other apart, debris following their paths, destruction raining down on every building that they crossed. People screamed as an elevator started to free fall from a skyscraper and she was about to shoot forward when the machine caught the elevator, allowed the occupants to get our, then slammed the elevator into the monster as it raced at the civilians.

The monster staggered backwards and she saw it spit out what looked like green blood and a tooth. It grinned at the machine.

"I'm sorry." The machine quivered.

Her eyes went wide. If it could bleed then it could die. Or at least be knocked out.

She flew forward and before the beast could rip the machine apart she crushed her fist into its cheek, which effectively slammed the beast into the ground. She didn't let up, hoping that sheer strength and overwhelming attack could subdue the beast before it could retaliate.

One fist went down on its head, another fist hit the beasts chest, a foot slammed into its neck, and red lasers blasted its chest. Kara dashed upward, then using all the speed she could muster, rocketed down and rammed her feet into its chest. She floated up again then crushed both her fists into its face.

Again, she raced upwards, this time flipping so her fists faced the ground, then shot downwards as fast as possible.

Then next thing she saw was that concrete and she slammed into the ground, her fists digging several inches through the concrete.

She looked to the side where she heard breathing and was met with a massive fist. Her head snapped backwards and she ricocheted off a car and into a bus stop.

Fingers suddenly wrapped around her legs and she was pulled up and thrown into the air. She spun to a halt and gasped when a car slammed into her. She fell to the ground with the car falling on top of her.

The metal creaked and she lifted it off of her, only for two feet to land on the top of it and crush the metal back on top of her.

Kara yelped and blinked away the pain as she looked up to see the beast raising its fists to end her. There were screams, and cries and she readied herself to receive the beating of a lifetime. Then it's eyes flickered upward for a moment.

It's fists didn't come down.

It only stared and she saw its face contort in confusion. She saw regret. Fear. Sorrow. Then bullets fired, only to bounce off its skin and the beast roared with malice. It looked down at Kara, pushing its feet further into the car so it would crush her, then brought down its fists.

But a fist of metal hit the beast first, and the monster soared off Kara and the car and slammed headfirst into a nearby building that collapsed on top of it.

She pushed the car off her with a grunt and got to her feet, waiting for the beast to come back for her and the machine.

It didn't come back. She listened for it and heard nothing but deep, slow breaths.

It was out cold. Or at least she hoped it was.

She huffed a sigh of relief and slouched a bit before looking back at the machine.

"Thanks."

"Anytime kid." The machine replied. The voice sounded tired, but she also heard the curiosity behind it.

She wouldn't be surprised if- "Say kid what's your name?"

"Kara." She replied with a smile.

"Asgardian?"

She raised an eyebrow, "A guard what now?"

"Hmm," The machine raised a hand and looked like it scratched its head. "Do you know Thor? Big dude, loves his hammer?"

"Uh," Kara started, "No sorry."

"Oh well. That new." The machine sighed. Slowly the large armor began to peel apart, the red and gold pieces flying back up in the air and into what she forged where large flying containers. A smaller armored figure, well an armored man, flew out of the big suits chest piece then floated down next to her, landing with a metallic clink.

The helmet opened upwards, and the man inside looked down at the shorter blonde. She just stared, waiting for an introduction.

He was older in his forties but was still a looker with a goatee. He chuckled, "I know, I know, its Tony Stark don't get your panties in twist."

"Who?"

He blinked. "Tony Strak? Billionaire? Playboy? Philanthropist? Iron Man? Founding member of the Avengers? Ring a bell?"

Kara awkwardly rubbed the back of her head. "Sorry. I'm new here."

"Huh," The man squinted his eyes at her then looked her up and down. He started to pace around her. "Super strength. Invulnerability. Not an Asgardian, and you have no idea who I am."

She shifted uncomfortably and readied herself for anything.

The faceplate closed back over the man, "Extra terrestrial I figure. Well thanks for the help lady. Lucky for you Shield's not around and I'm too busy to figure you out so stay out of trouble kid and don't make us come back for you."

With that the man named Tony Stark flew off towards the building the beast had fallen under. She watched as he moved piles of rubble and pulled out a shirtless man with pants then flew off in the horizon. She wondered who that man was then it hit her. The beast. It had the same pants on. That man was the beast.

She looked after Stark but after a few seconds noticed the dozens of civilians starting to crowd around her. Several started speaking loudly and she couldn't understand them. Maybe she should've learned to speak more earth languages.

With a shrug she took off to the sky. After flying high enough so she could see for a hundred miles she looked around for the man Tony Stark.

She failed to find him but instead saw a jet, or what looked like one, flying away from the city.

For a moment she pondered whether or not fooling him was a good idea. Obviously he was a hero, and there were definitely monsters in this world to.

If anyone would know where the hell she was then it was him. And if anyone knew about the Leagues where a bouts then he would. After all he was a hero, and what hero didn't know about the Justice League?

But she did wonder who the Avengers were. She shrugged. She would find out later.

Then she took off after the jet, determined to find out more from this Tony Stark.

A/N This idea came into my head after watching Age of Ultron and a few animated Justice league movies. Initially it started out as a DBZ and JLA crossover, but I rethought it and decided a Justice League and Marvel crossover would be cooler, and way more fun to write. Anyway this story will be three parts. This first part is obviously about the age of Ultron and then we'll see what happens from there.

Anyway Super Girl will play a major part in the upcoming events and throughout the story things will drastically change since Super Girls presence will cause a lot of disturbances in the MCU.

In case anyone thinks Super Girl is too OP, Im using her new 52 feats which puts her on the same, or similar level as the MCU characters.

Hope you enjoyed. Thanks for reading. God bless and don't forget to leave a review!

-Metal4k