The Forever Knights' attack was swift and relentless, their clanging armor echoing through the chamber as they charged. A massive mechanical dragon loomed behind them, its glowing eyes scanning the battlefield as it let out an earth-shaking roar.

Kuri wasted no time. She raised her sword, Hiko, its blade shimmering with a faint silver light, and charged at the dragon. Her movements were precise, her strikes calculated as she aimed for its vulnerable joints. Sparks flew as her blade carved through the dragon's mechanical parts, disabling its tail and one of its legs.

Reiko stood firm, summoning her Naginata of Kenkon with a graceful sweep of her hand. "Fulminus!" she cried, raising the weapon high. Lightning crackled down from the ceiling, striking the cluster of Forever Knights. The resulting explosion sent several of them sprawling.

Meanwhile, Ben activated the Omnitrix, slamming down on its dial. A green flash transformed him into Echo Echo. "Let's take this thing down!" he shouted, creating duplicates of himself that surrounded the dragon.

The Echo Echo clones unleashed a sonic barrage, their combined screams shaking the room. The dragon's armor cracked under the relentless soundwaves, its systems faltering. With a final, deafening cry, the mechanical beast collapsed, smoke rising from its shattered frame.

"Nice work!" Reiko shouted, dispatching another wave of knights with her lightning attack.

Kevin grabbed a discarded weapon, aiming it at a cluster of retreating knights.

"Don't!" Kuri warned, her silver eyes flashing.

Before Kevin could fire, Reiko darted forward, yanking the weapon from his hands. She hurled it into a pile of debris just as it detonated, sending shards of metal flying.

"Pay attention, Kevin!" she snapped, her tone sharp.

XXX

As the dust settled, Ben reverted back to his human form, wiping sweat from his brow. "Hey, are you okay?" he asked, glancing at Magister. "There's—" His voice faltered as he noticed the dark liquid pooling beneath the Plumber's suit. "Water? Wait, that's not water."

Magister slumped against the wall, his breathing labored. "It's too late for me," he rasped.

Kuri knelt beside him, panic flickering in her silver eyes. "Reiko, heal him!"

Reiko placed her hands over the wound, her expression grim. "I can't. I cannot heal Death."

Magister's gaze turned to Ben. "You must find out where the Level-5 tech is coming from. Find Max and save your planet."

Ben shook his head, his voice trembling. "I can't do it without Grandpa. I don't know how."

"You're Ben Tennyson," Magister said, his voice steady despite the pain. "You can do anything."

With those final words, Magister's body crumbled into dust, leaving the group in stunned silence.

Kuri placed a comforting hand on Ben's shoulder. "We're all here to help."

"Even Kevin," Reiko added, nudging him.

Kevin rolled his eyes but nodded. "Yeah, okay. Let's do this."

XXX

Back at the Rust Bucket, Kuri prepared for their next move. She took out a crystal on a string and held it over a map spread across the table. The crystal spun in lazy circles before abruptly pointing to a set of coordinates.

"That's where the mothership is," Kuri said.

"Great," Kevin said. "But how do we get there without getting blasted?"

Kuri smirked. "Good ol' scrying isn't the only trick I know." She grabbed hold of their arms and, with a shimmer of light, transported them directly onto the ship.

"Disguises?" Reiko grinned, waving her hand over their faces. In an instant, they appeared as DNAliens, their forms distorted and grotesque.

"Ugh, super ugly," Kuri said, laughing softly. "Better not talk. I think they'd figure us out if we did."

The group moved quickly, huddled around a mining cart as they made their way deeper into the ship.

"Kuri, are you sensing Grandpa Max?" Ben whispered.

Kuri pressed her hand against the cold metal of the ship, her eyes flashing silver. "He was here, but it's faint. There was a fight—blasters fired—but he finished and left. The trail's too old to follow."

"Then we keep going," Ben said, his voice firm.

Kevin led the way to the weapons room, where Reiko unleashed another Fulminus attack, destroying the arsenal in a dazzling burst of light.

XXX

As the alarms blared, Kuri reached for the group, her hand glowing faintly as she prepared to teleport them out.

But before she could, a squad of DNAliens surrounded them, grabbing her wrists.

"Let her go!" Ben shouted, his voice filled with a fury that made the aliens hesitate. He slammed down on the Omnitrix, transforming into Humongousaur.

The ground shook as the massive alien charged forward, grabbing DNAliens by the handful and throwing them aside like ragdolls.

Kuri struggled against her captors, her silver eyes wide with panic. "Ben, don't—"

"I said, let her go!" Humongousaur roared, his voice shaking the walls. His fists slammed into the floor, sending a shockwave that knocked several DNAliens off their feet.

The room fell silent as a Highbreed entered, his imposing figure dwarfing everyone else.

"What are you creatures doing on my ship?" the Highbreed said, his voice cold and disdainful. "I do not repeat myself to lower life-forms."

Kuri and Reiko readied their weapons, but Ben stepped in front of them.

"You can't use those again," he said firmly. "You'll hurt yourselves." He turned to Kevin. "Get them out of here. Now!"

"Ben, don't you dare—" Kuri started, her voice breaking.

"Hurry!" Ben snapped.

Kevin hesitated but nodded, grabbing Kuri and Reiko. Absorbing her shimmering power, he transported them outside the ship.

XXX

The ship erupted in a massive explosion, flames and debris raining down on the clearing below. Kuri and Reiko stared in horror, their breaths caught in their throats.

Moments later, Ben landed in the dirt, his human form bruised but alive.

"Ben!" Kuri ran to him, dropping to her knees beside him.

"Hey," he said with a weak grin. "Told you I had it covered."

"You're an idiot," she whispered, her voice trembling as she hugged him tightly.

Reiko smirked, stepping back to give them space. "Well, I guess we're lucky he's our idiot."

Ben pulled back, meeting Kuri's gaze. "We'll find Grandpa. And we'll save the world."

Kuri nodded, her confidence returning. "We've got your back, Ben."

"And there's already four of us," Reiko added. "Right, Kevin?"

Kevin rolled his eyes but grinned. "Yeah, yeah. Count me in."

Ben smiled, the weight of the mission lightened by the strength of his team. "Then it's Hero Time."