The storm clouds gathered over New York City, black and ominous, swirling like the wrath of forgotten gods. Thor, the God of Thunder, stood on the rooftop of a skyscraper, Mjölnir in hand, his eyes narrowing as he surveyed the chaos below. The city was in turmoil, its streets alive with the roar of battle and the screams of the innocent. Loki, his brother and eternal nemesis, had unleashed an army of Frost Giants, and the very fabric of Midgard trembled under their assault. Lightning crackled around Thor, a manifestation of his growing fury, and he knew that tonight, only one would emerge victorious from the maelstrom.

"In the eye of the storm, my hammer is the judgment that thunder brings."

Thor leaped from the rooftop, his descent a blur of godly might and purpose. He landed amidst the chaos, Mjölnir smashing into the ground with a thunderous impact that sent Frost Giants sprawling. "Loki!" he bellowed, his voice echoing like the roar of an angry storm. The Frost Giants turned their monstrous heads, recognizing the harbinger of their doom, but it was too late. Thor was a whirlwind of divine retribution, his hammer a blur of destruction that shattered ice and bone alike. The air was thick with the scent of ozone and blood, each strike a testament to his resolve.

"Asgard’s wrath flows through me; lightning is my battle cry."

From the shadows emerged Loki, his eyes glinting with malevolent glee. "Brother," he purred, his voice a silken mockery. "Did you truly think you could stop me?" He raised his staff, and the ground trembled as more Frost Giants materialized from the ether, their cold eyes fixed on Thor. "I have grown tired of your games, Loki," Thor growled, his grip tightening on Mjölnir. The two gods clashed, their powers colliding in a symphony of light and shadow. Thunder roared and lightning flashed as they fought, each blow resonating with the weight of their shared history.

"Beneath the thunder, there is no escape from the fury of a god."

The battle raged on, the streets of New York transformed into a battleground of mythic proportions. Thor’s strength was unmatched, his determination unyielding, but Loki's cunning and guile made him a formidable foe. As they fought, Thor felt the weight of every life at stake, every soul crying out for salvation. "This ends now!" he thundered, channeling the full might of the storm into Mjölnir. With a titanic swing, he sent Loki crashing into a nearby building, the impact shaking the very foundations of the city. But as Thor advanced to finish the fight, a portal opened behind him, and from it emerged a force that made even the God of Thunder pause.

"Every bolt I hurl is a promise that the darkness will not prevail."

Thanos stepped through the portal, his presence a void of cosmic dread. "Thor," he rumbled, his voice like the grinding of mountains. "You meddle in affairs beyond your understanding." The Mad Titan raised the Infinity Gauntlet, the gems set within it glowing with an unholy light. Loki, bloodied but defiant, grinned through the pain. "It seems I have an ally, brother," he spat. Thor’s heart pounded as he faced this new threat, the stakes rising to unimaginable heights. The storm intensified, mirroring the turmoil within him. As Thanos advanced, Thor knew that the battle for Midgard had become a battle for the very fabric of reality itself. The war was far from over, and the true fight had only just begun.