A/N: The first chapter in my new iteration of Hero Alliance. Hopefully this one goes along much smoother than the last iteration.

Danny Fenton was your typical American teenager. He went to school, became a half-ghost superhero, graduated, and now had been enjoying celebrity status for about six years now. In those six years, there was peace, for the most part. Ghost attacks had dwindled since he had saved the Earth from a giant meteor. You don't mess with the guy who saved the entire world lightly, after all. Now all he really did was make public appearances and stop the occasional robbery to help out the police. Was the era of Danny Phantom coming to an end?

Not today.

Danny sat on top of his house, FentonWorks, with a custom-built radio scanner. It scanned the radio waves, and then fed back reports that fell under the parameters. Robberies, public disturbances, etcetera, but most importantly, it pinged any ghost sightings. It had been over a month since a ghost dared show its face around Amity Park.

"We have reports of a humanoid ghost on 24th and Main." The radio blared. "Wearing a cloak and helmet with purple visor. Abilities seem to include teleportation and energy beams. All units in the immediate vicinity respond. Contain the suspect."

"That would be my cue." Danny smiled, standing on the ledge of his building.

A white ring of light appeared around Danny's waist, splitting and moving over his body. His street clothes were replaced with a black jumpsuit with white accents and his signature DP symbol, printed in green, on his chest.

In the last couple years, Danny had made a few upgrades to the suit. It was bulkier than before, now laced with the ghostly-equivelant to kevlar. Danny called it ghostium, but it was officially known as Ecto-Metal. It gave him extra protection again ecto-energy attacks. He also wore slim, lightweight gauntlets on both hands, that replaced the Fenton Thermos, and also contained a few extra gadgets that Danny might need in the field. He also wore earpieces that could expand into a green visor, which further helped him track down ghosts.

Danny took flight towards the reported location of the ghost. It sounded like it'd give him some good exercise. 24th and Main were the cross-streets for the nearby outdoor mall. There'd be a lot of people in harms way, and the police were only just recently getting basic ghost containment equipment. It usually bought them enough time for Danny to get there.

"Containment units are having no effect! What is this thi-BZZT!" The radio cut off.

That couldn't be good, Danny had to hurry. What kind of ghost could break out of a containment unit? Danny had only come across a handful of ghosts who could break out at full strength. As he approached the mall, Danny saw flashes of purple light as the ghost went on a rampage. He needed to put a stop to this and fast.

He could see the ghost now. It wore all black, with purple markings on its chest, wrist-gauntlets, and helmet. Purple energy seemed to coat it's body. It seemed to use this same energy to fire energy attacks, and even seemed capable of shaping the energy into weapons. This didn't look like any ordinary ghost. Danny would have to hit it fast and hard.

"Hey buddy, Hot Topic's at the mall downtown!" Danny taunted as he fired a beam from his hand, hitting the ghost head on.

The attack managed to knock the ghost back a bit, but didn't seem to do much damage. The ghost glared up at Danny, its white eyes glowed through the visor. It gathered energy and fired back at Danny. He managed to go intangible just as the blast connected. Usually, Danny didn't feel anything while intangible, but this blast made his body tingle in such a bizarre way, Danny shuddered and quickly found cover behind a building.

"Gah…that was just WEIRD. It felt like that attack would've ripped me apart if I hadn't been intangible." Danny mumbled to himself. He patted his own chest, as if to make sure he was still in one piece.

The ghost stalked towards him. Danny swore he heard it chuckle. "I must say Tennyson, after all my years of hunting you down across the multiverse, I've never seen THIS transformation."

Ten Son? Multiverse? Transformations? What was this guy talking about? This guy was trouble, Danny needed to keep him off balance if he wanted to win. Danny jumped out from behind the building, firing several energy spheres at the Purple Ghost. They all exploded around or against him, surrounding him in a smokescreen. Danny flew up, gathering cold energy in his hands, and firing it where the Purple Ghost should be in the smoke. The cold energy sucked the heat from the air, freezing everything in its path. As the smoke cleared, the ghost had been turned into an icicle.

"Ha, that'll show ya, you purple freak." Danny leaned against the ice sculpture that had been the Purple Ghost and laughed.

The ice began to shudder as it glowed with a purple light. Danny's eyes widened as he quickly retreated and the ice exploded in every direction. The Purple Ghost looked more annoyed than defeated. "This body's time is ending soon. Mind if I use yours?" The Purple Ghost fired another energy blast at Danny.

Danny narrowly dodged the attack and looked back where the purple energy hit. Whatever it touched slowly seemed to rapidly age and turn to ash. "Note to self, don't touch the purple energy." Danny swooped into the air, hoping to get a height advantage on his adversary. "Who do you work for? The Observants? Clockwork? Never seen another time ghost before."

The Purple Ghost narrowed his eyes. "Hmm, it would seem I've made a miscalculation. You are not the one I seek. But it seems you must be destroyed either way." The Purple Ghost fired several purple energy blasts up at Danny, who narrowly dodged them, and returned fire with a large ice blast. The Purple Ghost fired another purple blast to meet the ice. The two attacks collided as the constant buildup of ice was eroded by time. Neither side seemed to give. Then the Purple Ghost's energy suddenly spiked, he'd been holding back until now. Suddenly the purple energy pushed Danny's attack back effortlessly. Danny cried out as he hurried to go intangible before the blast hit him. Even while intangible, the blast somehow connected. Danny cried out in pain and lost the the strength to stay airborne. He crashed into the ground, shaking the immediate area and creating a small crater.

Danny groaned, sitting up. He hadn't been turned to ash, but the "time ray" seemed to mess with his intangibility when it connected at full strength. "I'll give you credit, child. Your abilities are most interesting, and you were a better combatant than I expected. But this is your end." The Purple Ghost taunted as he formed a purple energy blade around his hand, approaching the weakened Danny.

"Back…off…" Danny groaned in pain as he attempted to stand. "Back…off…back….OOOOFFFFFFFFFFF!" Danny roared as a continuous shockwave of ecto-energy blasted from his mouth, consuming the Purple Ghost in the attack. Danny's Ghostly Wail was his most powerful attack, and he'd never met a ghost who didn't take a serious pummeling from the attack. Purple Ghost stopped in his tracks, crossing his arms in an X as he braced against the attack.

"Hmph, seems you still have some fight in you after all." Purple Ghost said as the Wail subsided.

Danny groaned, holding his head in his hand. He hadn't used that attack in a long time. He hadn't really needed it in the last few years. His body wasn't used to the power output. Unfortunately, it wasn't enough, Purple Ghost was still coming. Danny had only stalled him for a moment. Purple Ghost grabbed Danny by the neck, lifting him into the air and raising his blade.

"Any last words, foolish boy?" Purple Ghost sneered.

Danny groaned as he tried to force his body to respond. Nothing wanted to move. He'd failed, been done in by an unknown adversary. He couldn't believe this was the end. His vision faded, his body just seemed to relax, accepting the inevitable. Purple Ghost swung his blade towards Danny. Danny heard a loud ripping sound, followed by a constant gust of wind. There was no pain. No suffering. Was this death?

"Tennyson!" He heard the Purple Ghost roar.

Danny felt the Purple Ghost drop him to the ground and heard him shift his stance, as if to face a new threat.

"Rook, wrap him up!" A voice cried out.

"Roger." Another, calmer voice responded.

Danny heard the sound of a blaster being fired, and then a snapping sound. He managed to open his eyes to see the Purple Ghost tied in an orange, glowing rope. Facing off with the Purple Ghost was a boy in a black and green hoodie and a taller man wearing a blue bodysuit. Danny swore the taller man looked like a giant cat. He was the one holding the blaster Danny heard. Behind the two, what looked like a Ghost Zone Portal had just finished closing.

"We got you now, Eon." Hoodie boy said. He couldn't have been older than Danny.

"Eon, by the authority of the Plumbers, you are under arrest." The cat-like man, who Danny assumed was Rook, said.

"Tennyson...you saved me the trouble of hunting you down. Now I'll defeat you and transfer into your body using the Omnitrix." Eon chuckled. His body surged with purple energy, frying his bindings completely.

"Scatter, Ben!" Rook yelled.

Ben and Rook took off in different directions, flanking Eon. Rook fired several shots from his blaster. Eon called up a temporal shield to deflect the attacks. Rook flipped his blaster around, and it seemed to shift shape into a baton-like weapon. Rook charged Eon slashing with his blaster-turned-baton. Eon countered with his energy blade. The two weapons colliding created sparks between them. While Rook had Eon distracted, Ben seemed to be fiddling…with his watch?

The device on his wrist was black with white and green circuitry surrounding the face of the watch. It almost fit like a glove, covering half his forearm and wrapping around his hand. His thumb, index finger, and middle finger were also covered by the glove, leaving his remaining two fingers bare. Ben pressed a button near the face of the glove/watch. The face extended up, displaying a circular hologram, which seemed to have a rotation of icons. Ben seemed to rotate the icons until he found a certain one, then he lifted his hand into the air before slamming it down on the watch face.

A green flash of light engulfed the strange boy. When the light faded, the boy had been replaced with a slightly taller fire monster. "Heatblast!" He yelled in a rugged voice.

Ben-Heatblast ran towards Eon and Rook, but it seemed like Eon was ready for such a tactic. An energy blade extended from his other hand, and he turned to counter an overhead strike from Ben-Heatblast. Eon stood between the duo, his blades clashing against them both.

"Give it up, Eon!" Ben-Heatblast taunted. "We've got you between a rock and a hard place!"

He suddenly ducked and punched up towards Eon's gut. Eon gasped, having the wind knocked out of him. He doubled over, giving Rook an opening as he slammed down on Eon's back with his baton. Right before Eon crumpled to the ground, he teleported in a blink of purple light, and was suddenly standing a distance away from the duo. Ben-Heatblast raised his arms forward, firing a column of flame at Eon. Eon simply raised his shield, the fire sliding off of it harmlessly.

"It's been awhile Tennyson." Eon seemed to smile under his visor. "But you're still as predictable as always. I could destroy you right now if I wanted."

"You can give it a try!" Ben-Heatblast baited. But it seemed like Eon wasn't biting.

"Unfortunately, this isn't your place and time. There are big things coming, Tennyson. I hope you're ready." Eon raised his arm behind him, firing a beam. The beam stopped in midair as it opened a purple, swirling portal.

"No, you're not getting away!" Rook growled.

Both Ben-Heatblast and Rook charged at Eon, but before they were even close, Eon had stepped through the portal and closed it behind him.

"Damn!" Ben-Heatblast cursed. He hit the hourglass symbol implanted in his chest, and in a flash of light, Ben was back to normal.

Danny watched all of this in awe. What the hell? He did his best to stand, his legs still shaky. "W-Who are you guys?"

"I'm Ben Tennyson, and this is Rook Blonko." Ben explained, approaching the white haired boy. "We're Plumbers, an intergalactic police force."

"You guys are from…space?" Danny raised an eyebrow.

"A bit more out there than that." Ben crossed his arms. "It sounds crazy, but we're from another universe entirely."

"Another universe?" Danny crossed his arms as well, scrunching his brow in thought. Danny couldn't completely dismiss the idea. After all, he'd been to an alternate dimension and had even traveled through time.

"Yes, we know it may be hard to believe. But the world you know isn't the only one out there." Rook added.

"Oh it's easier to believe than you might think. I guess I should introduce myself. They call me Danny Phantom." A ring of white light washed over Danny, returning him to his human form. "But my friends call me Danny Fenton."

"Most interesting." Rook put a hand to his chin as his baton changed into a scanner. He moved it over Danny's body, taking a reading of his DNA. "You are human, but your DNA seems to have changed to a hybrid of some kind. Was one of your parents an alien?"

"An alien? No of course not." Danny chuckled. "I was in an accident with one of my parent's inventions, the Ghost Portal. It infused my DNA with ectoplasm, giving me ghost powers six years ago."

"Ghosts?" Ben scoffed. "Ghosts aren't real."

Danny shrugged. "Well neither are aliens."

Ben seemed to think about it for a second. "Touché."

"By the way, that guy we were fighting? Who was that?" Danny asked. "He seemed to think I was you."

"That was Eon, a time-traveling, universe-hopping villain." Ben said. "He's an alien known as a Chronian. He came from a dying universe to find a way to save his race. He's been on the hunt for a doomsday device for centuries. To survive, he's hunted down alternate versions of me to use for new bodies."

"And how does he do that?" Danny raised an eyebrow.

Ben raised his arm, showing Danny the device on his wrist. "With my Omnitrix, a device capable of storing alien DNA and transforming the user. When used to transform into a Chronian, it essentially copies the consciousness of the Chronian entirely. If I were to transform using a scan of Eon's DNA, I'd basically become him and his life would start fresh."

"Sheesh, thanks for the exposition." Danny laughed. "Where do we go from here?"

Ben and Rook exchanged a look. "WE go back to our world and try to track Eon's chrono-signature." Ben explained.

"While it seems you did manage to put up a good fight against Eon, your services will no longer be needed, Mr. Phantom." Rook added.

Danny scoffed. "Are you kidding? If anything, I need to get even with that purple freak." Danny said. "But more importantly, he's clearly a threat to my world. I have every right to want to pursue him."

"He's got a fair point, Rook." Ben shrugged.

"I suppose. But we should get approval from Magister Tennyson." Rook said. He pulled out a strange gun-like device from a compartment in his suit. It looked like a gun, but with a lightbulb or something instead of the traditional gun barrel.

Rook aimed it in front of the group and pulled the trigger. It fired a beam of light that seemed to stop in midair and condense into a swirling portal. Wind kicked up around the portal as the air pressure around it continuously shifted.

"Come on Danny, my grandpa will want to meet you." Ben gestured for Danny to follow as he stepped through the portal.

Rook followed, with Danny close behind.

"So that's where we met Danny." Ben finished explaining to Max Tennyson, his grandfather and Magister of Earth.

Ben and Rook had taken Danny to the Plumber Base under Bellwood in order to meet with Max.

"Well Daniel, I must give you credit where it's due." Max said. "There's only a handful of people who can go up against Eon and live to tell the tale."

"Thanks for the compliment, but I'm more worried about finding Eon again." Danny said. "He needs to be taken down."

"Agreed. We're scanning for his chrono-signature as we speak." Max said. "Rook, you're needed in New Mexico. Kai has reported of a rogue Loboan preying on the locals."

"Very well. Ben, Danny, good luck." Rook nodded to them and headed out of the room.

"For now, Ben, why don't you show Danny around Bellwood?" Max suggested. "As soon as we have something, I'll alert you personally."

"Sounds like a plan, thanks Grandpa." Ben gave his grandfather a hug. "Come on Danny, I'll take ya to Mr. Smoothy. They're running a two-for-one special right now!" Ben hurried out of the room, towards the exit.

Danny followed him, slightly exasperated. He didn't really want to go have smoothies, he wanted to take down Eon. Ben led Danny to a large garage filled with all kinds of assault vehicles. Ben passed most of them until he came upon a black sports car with green accents. They both got in as the engine roared to life. They sped off from the Plumber Base, emerging on the surface and towards Mr. Smoothy.

Meanwhile…

Eon had not run off as far as Ben and Danny had thought. He emerged from a time portal in a very bizarre tower. "So this is where this world's ruler of time resides…perfect." Eon chuckled to himself.

The tower was full of clocks, gears, and bells; all being symbols of time. Eon walked past these, as well as a hall filled with portals that led to different eras in this world's timestream. At the end of the hall, a metal cylinder with green buttons sat on a pedestal. Eon picked it up.

"Interesting, you have a similar chrono-signature to the boy I fought earlier." Eon pondered. "But there is something…darker about you." Eon wasn't sure if the being trapped within could hear him, but what he did know, was that this being would be of good use to himself.

A triumphant laugh could be heard from within the cylinder. It echoed throughout the tower as Eon opened the cylinder and let out it's prisoner.

"Well, how do you feel?" Eon asked the former prisoner.

"Ha…perfect." Dark Danny smirked.