Nova City shimmered beneath the alien sun, its neon skyscrapers scraping the lavender sky. Astra Blaze, Prism Prime, soared above the cityscape, her Solar Prism pulsing with golden light. Unease gnawed at her. For weeks, distress calls had been eerily silent, replaced by a chilling void of communication.Suddenly, a flicker on her holo-communicator. Cygnus Vortex, his voice strained, "Astra, Nova Station is under attack! Xanathar's forces have breached the defenses. We need backup…now!"Panic jolted Astra. Nova Station, a vital nexus point for interstellar travel, was under siege. This wasn't just another skirmish; it was a direct assault on the heart of the Prism Corps. She rocketed towards the station, a trail of fire in her wake.Reaching the station, a scene of utter chaos unfolded. Xandrosian warships, sleek and menacing, hovered in the vacuum, their plasma cannons spitting emerald fire. Prism Corps Denarians, their crimson battle suits shimmering, fought valiantly against overwhelming odds. In the heart of the station, a colossal Xandrosian battlecruiser, the Harbinger, loomed ominously. From its depths, a figure emerged – Xanathar Prime, his dark armor crackling with ominous energy."Foolish Guardians," Xanathar boomed, his voice echoing through the ravaged station. "Your precious Prism Force is no match for my Dark Prism!"A wave of dark energy erupted from Xanathar, slamming into a Denarian squad. Their shields flickered and died, screams swallowed by the void. Astra roared, unleashing a torrent of solar energy that ripped through the Xandrosian ranks. But for each one she felled, two others seemed to take their place.From the corner of her eye, Astra spotted a new threat. A shimmering figure materialized beside Xanathar – Nebula Vortex, her Quantum Prism swirling with chaotic energy. Betrayal burned in Astra's chest.Suddenly, a booming voice resonated through the station. "Stand aside, Guardians! This fight is mine!"Emerging from the smoke was Orion Shield, his Celestial Prism glowing vibrantly. He charged at Xanathar, a whirlwind of fists and super strength. Nearby, Vega Specter materialized, a kaleidoscope of colors swirling around her as she disrupted Xandrosian communications.The battle raged across the station. Astra fought with renewed vigor, her anger fueling her solar blasts. Millennians, their exoskeletons groaning under the strain, held the line against relentless Xandrosian hordes. Even Corpsmen, fresh out of Space Academy, bravely stood their ground, their lasers spitting defiance.But the tide was turning. The Harbinger unleashed a devastating barrage, crippling the station's defenses. Just as all hope seemed lost, a streak of blue light pierced the battle. It was Aurora Flux, the Cosmic Prism swirling around her. With a wave of her hand, she manipulated the station's debris, creating a makeshift shield that deflected the Harbinger's onslaught.A glimmer of strategy sparked in Astra's mind. Using her telepathic link with the other Centurions, she formulated a plan. Their combined Prism Force could overpower Xanathar's dark energy, but only if they could focus it in a single, devastating blast."Centurions! Focus your energy on me!" she roared. Cygnus, Vega, and Orion responded in unison, their Prism energies channeling towards Astra. The air crackled with raw power as the Solar Prism pulsed with an intensity never seen before.Astra aimed at Xanathar, unleashing a torrent of combined Prism Force. The station shuddered as the beam of pure light collided with the Dark Prism. A blinding flash engulfed the station, then silence.When the light faded, Xanathar and Nebula were gone, the Harbinger limping away in retreat. The battered station hummed with a desperate resilience. Cheers erupted from the remaining Prism Corps members, a weary but defiant roar.The battle was won, but the war was far from over. Astra landed beside Orion, a grim expression on her face. "We need to find Xanathar and Nebula," she said, her voice heavy with worry. "And we need to understand why the distress calls stopped."The victory hung heavy in the air, laced with the bitter taste of unanswered questions. The Prism Corps had prevailed, but the darkness that threatened the universe seemed to grow ever stronger. As Astra surveyed the ravaged station, she knew this was just the beginning. The Prism's fury had bought them time, but the fight for peace was far from over.