CHAPTER1:SUDDEN APOCALYPSE.

The skies above New York City darkened unnaturally, as though the heavens themselves were recoiling from an unseen force. On the rooftop of Stark Tower, the Avengers gathered, their faces etched with concern. They had felt it—a disturbance in the fabric of reality, a ripple that spoke of unimaginable power.

This universe was considered one of the luckiest during the Infinity War. Only Iron Man had fallen, sacrificing himself to defeat Thanos and save the universe. The remaining Avengers had restored balance, bringing back half of all life that had been erased by the Mad Titan's snap. The cost had been high, but the world had found a fragile peace. Now, a new threat loomed, one that promised to shatter that peace and plunge the universe into chaos once more.

Captain America, holding the case with the Infinity Stones, was moments away from transporting them back to their original timelines. He glanced at his comrades, each one bearing the weight of their victory and loss. Thor, Hulk, Black Widow, and Hawkeye stood ready, their eyes scanning the horizon for any sign of trouble.

"Ready, Cap?" Bruce Banner, in his Professor Hulk form, asked, his voice a low rumble of restrained power.

Steve Rogers nodded, his face set in determination. "Let's get these stones back where they belong."

As he prepared to activate the Quantum Realm device, a portal crackled to life in front of them, swirling with eldritch energy. The Avengers tensed, muscles coiling as they prepared for whatever might emerge. From the vortex stepped a figure draped in green and silver, his visage obscured by a metallic mask that sent chills down their spines.

"Who the hell is that?" Natasha Romanoff muttered, her eyes narrowing as she reached for her weapons.

Thor gripped Mjolnir tightly, his knuckles white with the force of his grip. "I sense great power within him," he said, his voice a low growl.

The figure raised his mask, revealing a face shrouded in darkness. His voice, cold and commanding, echoed through the air. "Avengers. You have meddled with forces beyond your comprehension and I have simply come to re-entangle the wires you have crossed."

Steve Rogers stepped forward, his shield raised defensively. "Who are you?" he demanded, his voice steady despite the uncertainty gnawing at him.

"I am cosmic fear,I am Victor von Doom. formally known by Dr Doom." the figure proclaimed, his eyes gleaming with dark purpose. "And I have come to claim what is rightfully mine."

Before the Avengers could react, Doom's gauntlet-clad hand shot forward, and the Infinity Stones were ripped from the case, hovering around him in a display of raw power. The Avengers tried to move, but a force field held them in place, rendering them powerless to stop him.

"What is this pressure?"Hawkeye mumered as he raised his gaze towards the flying infinity stones that were flowing mid air."This isn't an easy person to meddle with." a fearful and anxious thor replied.Seeing the infinity stones were real Dr doom let off an evil smirk making all the avengers to tremble in fear within their ego's Unbeknownst to them that Dr doom had already let off his minions and they were crushing the city underneath.

The city's skyline exploded with flashes of light and the ominous sound of destruction. Doom's robotic minions, armed with advanced weaponry, descended upon the streets, spreading chaos. Buildings crumbled, fires erupted, and terrified citizens fled in every direction.

From the chaos emerged the familiar red and blue figure of Spider-Man. Swinging from building to building, he expertly navigated the falling debris and chaotic streets. "I swear, we can't catch a break!" he quipped, webbing up a group of robots before they could harm a family.

Ant-Man, in his giant form, was using his immense size to protect civilians, stomping on Doom's robots. "Tell me about it, kid. We just beat Thanos, and now this?" he shouted back.

Doctor Strange hovered above the streets, using his mystic arts to shield groups of people from falling debris and enemy fire. "Focus, everyone! The city needs us now more than ever!" he called out, his voice carrying an air of urgency as he waved his hands using his teleportation spell.

As the battle raged in the streets, Doctor Doom took advantage of the chaos. He marched toward Stark Tower, his eyes locked on Captain America, who still held the case with the Infinity Stones. The remaining Avengers—Thor, Hulk, Black Widow, and Hawkeye—formed a protective line in front of Steve.

Doom's voice boomed over the cacophony. "You cannot stop what is destined to be!Where is the real time stone?"

"We'll see about that," Natasha replied, launching a flurry of Widow's Bites at Doom.

Doom barely flinched. With a flick of his wrist, he sent Natasha flying back with a burst of energy,making her kiss the stark building walls. Thor charged at him, Mjolnir crackling with lightning. "For Midgard!" he roared, swinging his hammer with all his might.

Doom raised a hand, and an energy shield deflected Thor's attack. "Pathetic," he sneered, blasting Thor with a concussive force that sent him crashing into a nearby building.

Hulk roared and lunged at Doom, his massive fists ready to smash. But Doom was prepared. Using the power of the Infinity Stones, he ensnared Hulk in a web of energy, lifting him off the ground and rendering him immobile,then afterwards ruthlessly let gravity to take effect on him making him fall 230 levels above the ground.

Hawkeye fired a series of explosive arrows, each one aimed with precision. They detonated around Doom, but he remained unharmed. With a casual wave, he sent Hawkeye tumbling across the rooftop.

Captain America, standing alone, knew he had to protect the stones at all costs. "You'll have to go through me first," he declared, his shield at the ready.

Doom laughed, a cold, mocking sound. "As you wish." He charged at Steve, their clash reverberating across the city. The two exchanged blows, but Doom's enhanced strength and the power of the stones were overwhelming.

Steve fought valiantly, but Doom's power was too much. With a final, devastating strike, Doom knocked Captain America to the ground. He stood over Steve, his gauntlet glowing with the combined power of the Infinity Stones.

"Your bravery is commendable, but ultimately futile,Now where is the real time stone?" Doom said. Steve smiled and said "How about youl look for it yourself?"."Do not play with me idiot and hand it over",Dr doom said as he knew if he delayed long he might face some consequences."I can do this all day,"Steve said.That was when Dr doom realised that the time stone was left in the past.

The city continued to fall apart around them, Doom's minions wreaking havoc. Spider-Man, Doctor Strange, and Ant-Man were doing their best to contain the destruction, but the situation was dire.

Doom looked around, his eyes gleaming with triumph. "This is only the beginning. The multiverse will fall, and I will be its conqueror.controlling the threads to reality I will be unstoppable!"

With that, he vanished, leaving the city in shambles and the Avengers in great disbelief. They had fought with everything they had, but Doom had proved too powerful. The Infinity Stones were in his possession, and his plans for the multiverse were just beginning.

The Avengers regrouped, battered and bruised, but their resolve remained unbroken. "We need to find out who he really is and how to stop him," Steve said, his voice grim.

Natasha nodded, helping Thor to his feet. "We won't let him get away with this."

Doctor Strange, hovering above, looked down at the team. "The fate of the multiverse is at stake. We must act quickly and wisely.I fear that this person is way worse compared to Thanos and he will stop at nothing"

As the dust settled, the Avengers knew they faced their greatest challenge yet. The fight against Doctor Doom had just begun, and the fate of all realities hung in the balance.The avengers with gloomy eyes looked over the city doubting their abilities as to if they could handle such a formidable foe.