After managing to fend off the police forces who had tried to stop him and finished knocking out all of Apex's men in his path, Eren Michaels, fully equipped in his suit reinforced with pieces of armor, and his head hidden under a helmet, walked now towards the back of the warehouse, where were the crates and other goods recently arrived by the ships of the corporation.

A last guard tried in vain to stop him with his electric baton, but Eren struck him a violent blow, without mercy, with one of his metal gloves. A powerful shock wave emanated from the glove, hitting the guard full in the chest and sending him ten yards back against a wall. Once done, Eren Michaels continued on his way undisturbed any longer.

One by one, he opened the crates, destroying the boards with ease thanks to his waves emitted from his metal palms. And finally, he smirked under his helmet after finding what he was looking for and he was happy to have had the right information. In the crate was a metal box, which Eren opened easily with his gloves and opened it. Neatly arranged in rows, were several small vials containing a thick green liquid, and on which were labeled: Caution. Extremely radioactive concentrated product. This little warning made Eren smile slightly as he took one of the vials between his fingers, examining it more closely in the light.

_ "Finally ... here is the grail of my vengeance ..." he breathed gravely under his helmet "... your own resources will lead to your doom, Apex."

Eren then opened the metal case he had taken with him and began to carefully put all the vials in, then once done, walked outside to leave and return to his lab.

But once out of the warehouse, surrounded by the burning wrecks of police cars and knocked down officers on the ground, Eren stopped abruptly, his brow furrowing.

In front of him stood five people, also wearing high-tech armored outfits. Eren recognized them immediately, having seen their exploits on television before.

_ "Surrender, Shockwave!" Fred then shouted in his monster costume, in an authoritative voice. Everyone else glanced puzzled at him.

_ "Shockwave? Seriously?" Go Go then said, raising an eyebrow.

_ "What? He's a super villain, he needs a classy name." Fred argued, shrugging his shoulders.

Hiro and the others sighed softly but quickly refocused on the most important, taking a stand in front of this armored stranger and wearing devastatingly powerful metal gloves. In his mind, Hiro hoped that Baymax was going to happen very soon.

In front of the group of teenagers, Eren remained very calm and gently putting his metal suitcase on the floor, cracked his knuckles as he took a step forward.

_ "Here they are ... the Big Hero 6." he said coldly. The so-called defenders of justice, yet come to the rescue of a filth like Walter Simmons."

The group of heroes could smell all the hatred escaping from his mouth.

_ "We are by no means the defenders of Simmons." Hiro asserted, supported by his friends.

_ "Really? Then let me go and give this monster what he deserves." Eren replied, his voice growing threatening and closing one of his fists.

_ "Look, we don't like Simmons either, but what you just did... those police officers, that theft... it can't go unpunished." Honey Lemon said, having already prepared one of her alchemical spheres to throw.

_ "Gently put your hands behind your head. We can fix this without getting into a confrontation." Wasabi added, preparing in case his plasma blades.

Eren sighed heavily under his helmet hiding his face, finding that these young heroes would not accept to listen to the voice of reason, from his own point of view.

_ "Well, in my case ... I choose confrontation." Eren growled.

With that, the man slammed the ground in front of him with both palms, unleashing a powerful shock wave that spread, shaking and smashing the ground in its path.

_ "BEWARE!" Hiro screamed, throwing himself and rolling to the side to dodge the wave, and imitated by all his friends.

Go Go was the first to get to her feet with agility and began to run at full speed to take Eren from the back. With a very nimble leap, she threw one of her maglev discs like a boomerang. Eren was taken aback by the swift object hitting the side of his helmet full force, but quickly took Go Go as a target.

_ "We must immobilize him and take his gloves!" Hiro indicated to the others.

_"Consider it done!" declared Fred who leaps forward towards the opponent. From the mouth of his monster costume, Fred spat out a huge torrent of flame, which Eren noticed and smoothly avoided as he rolled to the side, despite the obvious weight of his armor.

Eren then took Honey Lemon as target and unleashed another shock wave at her. Honey had time to throw a sphere, creating a gas right in front of her that solidified on contact with the air and formed a veritable protective barrier. The wave hit the shield, absorbing the shock, and shattering into pieces. Honey was still thrown by the blast of the wave and rolled back, stunned, but not injured.

Wasabi leaped forward, attempting to damage Eren's metal gloves by hitting them with his plasma blades. But Eren quickly dodged all the attacks. Hiro, took advantage of this diversion to pass behind Eren and jumped on his shoulders, trying to tear his helmet off his head and unmask him.

_"ENOUGH!" yelled Eren Michaels, quickly annoyed by this fight. With both hands, he unleashed a new wave of shock, far more powerful than the others. Hiro, Wasabi, and all the others were pushed back.

_ "Raaah, he's strong ..." Wasabi grumbled, standing up with difficulty after the shock.

_ "Come on, he's all alone! We can do it!" Hiro insisted, although he too was still in pain from the blow.

But he didn't have time to react when Shockwave, with extraordinary speed, grabbed him by the throat, lifting him off the ground as if he weighed nothing, under the surprised looks of the others. Hiro gasped, feeling that this man's iron fist could crush his windpipe in a second.

_ "Hiro!" cried Go Go in horror.

Eren glared at the teenager he was holding, tightening his grip on his throat a little more.

_ "I have nothing against you, but I would destroy all those who will try to stop me in my vengeful crusade ... do not think that I do it for me ... if I do it, it is above all for her!"

Her? But who was he talking about? Hiro didn't have time to think about it, seeing Shockwave getting ready to give him a final blow in the face to finish him off.

But suddenly, a red, armored fist, propelled by a reactor, sliced through the air in seconds, hitting Shockwave head-on and pushing him back several yards. Freed from the enemy, Hiro fell to his knees on the ground, coughing and rubbing his sore throat. They rushed to his aid.

_ "The cavalry has finally arrived!" Honey Lemon smiled, regaining hope.

Arriving from the air like an angel in armor, Baymax landed on dry land, deactivating his wings and recovering his reaction fist which came back to his arm. But his friends, although reassured to see him at last, were also surprised to see that he was not alone. Elsa was there, held by Baymax's other arm, who put her down gently.

_ "E ... Elsa? What are you doing here?" Honey asked, more worried about her than angry.

_ "It's way too dangerous. If Apex Corporation knows you're here ..." Hiro said in turn.

Elsa understood well their concern, but answered them immediately, taking Hiro's hand in hers.

_ "I know, but I couldn't stay here knowing you were in danger. I owe you a debt, and I have to pay it."

The Big Hero 6 didn't know what to say to those words. But very quickly, the conversation was interrupted by the groan of anger that Shockwave emitted as he stood up from the blow, his armor having greatly absorbed the shock.

_ "Two more or less will not change anything ... I will crush you all!" he growled, possessed by rage and clenching his fists, vibrating his metal gloves with powerful waves.

Seeing this stranger in the strange armor, Elsa took a stand, ready to defend her new friends. In front of everyone, she covered her hands in frost and surrounded herself in a halo of blizzard, preparing to cast one of her spells. Behind his helmet, Eren also showed a bewildered look at this manifestation of magic.

_ "Elsa ..." Hiro sighed when he saw her do it.

After concentrating, Elsa summoned a first explosion of freezing from her hands, which hit Shockwave in the chest, causing him to take a step back. Without stopping and without giving the enemy time to act, Elsa began to bombard him with icy projections, gradually freezing his armor, his hands and his feet to immobilize him in place. Hiro and his friends watched in amazement. One of the ice projectiles hit Shockwave's helmet, shattering it at the bottom and revealing half of the lower jaw and cheek of the man.

But even half his body trapped in ice, Shockwave did not admit defeat, redoubling his anger and accentuating the sonic power of his gloves.

Elsa was about to freeze him completely to prevent him from harming, but was distracted by a reaction from the opponent. She saw him grit his teeth, tremble with immeasurable anger, but also ... she noticed a tear run down her cheek in the open air. He was crying? But not just sadness ... rage too.

_ "You ... will not prevent me from avenging her!" shouted Shockwave fiercely.

Elsa wondered who he was talking about, but was in turn surprised and thrown back by the devastating shock wave Shockwave elicited to break free from the ice that was holding him back. Elsa was narrowly caught by Baymax who then put her back on the ground.

_ "Elsa, are you all right?" Honey asked.

_ "No injuries detected." Baymax said on the spot.

Everyone was reassured, but immediately had to focus again on Shockwave, who now free to move, breathed like a raging bull, his armor having been greatly damaged by the wave spawned by his own gloves, also smoking and provoking overload sparks.

_ "Look, his equipment is completely out of order." Wasabi said.

But Elsa and the group of heroes did not rejoice too quickly in the face of Shockwave who began to mock them ominously.

_ "You fools!" he hissed between his teeth. "I'm offering this world a chance to be freed from a tyrant, and you don't care! Well, so be it, but it will cost you far more you think."

_ "Well in the meantime, you're finished." Fred said with determination.

But again, Shockwave scoffed, more openly this time, with a hint of madness in his voice.

_ "Oh, you think so? I left you a little farewell gift ..." he said "... I hid somewhere in the city, a bomb filled with a deadly gas! If it explodes ... oh, I let you imagine the carnage ... so what do you choose? Find it and defuse it, or waste your time trying to stop me? The choice is yours, heroes."

Elsa and the Big Hero 6 shared the same look horrified by such a revelation? But was he telling the truth or was it manipulation on his part? They could have hesitated, but they couldn't take the risk. If this bomb were real and exploded, thousands of lives would be lost.

Elsa saw that Hiro didn't want to let Shockwave get away, but took him by the shoulders, forcing him to look her in the eyes.

_ "Hiro ... let him go ... your people need you ..." she said with conviction.

Hiro clenched his teeth and fists, but knew deep down that if Tadashi was there, he would have said the exact same thing ... Looking the Queen of Arendelle in the eye, Hiro saw that same strength there, that same spark of kindness... Hiro gently took Elsa's hand in his, nodding to her request.

_ "We form several teams! Look for the bomb!" he ordered, and with Elsa, was transported by Baymax who flew away. Honey Lemon and Fred left on the other side, and Wasabi and Go Go on another.

Shockwave, or Eren Michaels, stood there watching them disperse and set off across town to find his bomb. Spitting a trickle of blood on the floor from a slight internal wound, he retrieved his metal suitcase containing the vials of serum, and began to walk away to return to his lair.

_ "I have nothing against you, hero ... but for her, I would go to the end, even if it means completely burning this world."

*************

Meanwhile...

_ "Penny! Don't play so close to the edge, it's dangerous!"

Under her father's stern but nonetheless justified injunction, the eight-year-old girl named Penny, dressed in a floral holiday dress and wearing a sun hat on her head, decided to stay and gaze at the calm ocean, leaning on the railing of her parents' luxury yacht.

The father, a man in his forties, wearing a Hawaiian shirt, was comfortably settled on his deckchair, sunbathing on the yacht's terrace and being served a cocktail by the butler. The mother, in a swimsuit, was enjoying the jacuzzi.

_ "Ah, what a vacation. We really are like kings." the mother commented, relaxing.

Penny, on the other hand, huffed in boredom as she watched the waves all around, and waited for something to happen.

But suddenly a strange and powerful echo was heard, under the boat ... Penny listened intently ... it was like ... some kind of animal growl ... looking down to look over the the rail, the little girl opened her eyes wide ... under the yacht, a dark, gigantic and bestial form moved, making hear these deep sonorous rumblings underwater ... The giant underwater form then rose its head, showing two bright blue eyes, which seemed to be looking towards the girl ...

_ "Dad ..." Penny started to say, her voice shaking.

But suddenly, the yacht was brutally shaken by a violent swirl of waves, causing the parents to fall and causing panic on board. Penny also fell, and began to scream and cry, before being joined by her mother who hugged her.

_"What is happening?!" yelled the father.

The boat was shaken again for long seconds, and the family of wealthy vacationers, then gazed from the deck of their yacht, the emergence of immense rocky-looking spikes, dripping water and foam and forming part from an immense scaly back ... it was like seeing an island rising from the waves ... the underwater growl redoubled in force, tearing chills from all ...

_ "Oh god ... protect us ..." the mother begged, shocked at such a sight and hugging her daughter.

But the parents screamed in terror, and daughter Penny remained silent, shocked at the sight of a large reptilian head emerging from the water just beside the boat, showing golden eyes of a fury unlike any other on earth, and making hear with its giant jaws full of sharp teeth, a roar which, like a hot iron, marked forever those who heard it ...