Attack on prime

'Who is that?' Eren thought before standing up and leaning against a tree.

"Eren, stay behind me!" Optimus ordered.

Eren was about to protest, but Optimus aimed his gun at the flying titan. He transformed his other hand and aimed it at the struggling Reiner.

'What's going on?!' Eren questioned as he moved forward.

"That's an order!" Optimus shouted as he noticed Eren moving.

Eren noticed a fearful look in Optimus' eyes. Why was he so scared?

"Impossible," the flying titan gasped as Eren looked at him.

The flying titan, or Megatron, looked in their direction with eyes equally as wide as Optimus'. But the flying titan's attention was directly focused on Optimus.

"You're...you're alive?" the flying titan asked in surprise.

'Wait, they know each other?!' Eren exclaimed.

The three heard a crumbling noise and turned to see Reiner steam coming from his body. He let out a deafening roar, causing Eren to cover his ears and close his eyes. Eren opened his eyes to see Optimus and Megatron completely unaffected by the attempt at challenge.

Megatron looked up to see the muscular titan rip off his hand with the other one, throwing it on the other side of the wall. He didn't know what the frag was going on, but...

He took a deep breath and closed his optics. He knew he was making the right decision.

"Prime!" Megatron called out as he looked at him, ignoring the fact that a gun was pointed at him, "Whatever, the situation is, I'm on your side!"

'They do know each other!' Eren realized.

"Why should I trust you?!" Optimus demanded.

"Because you know you can't do this on your own!" Megatron answered.

Optimus kept glancing back and forth at Megatron and Reiner. One was trying to kidnap Eren, but he was responsible for the near extinction of the human race. The other one may have ended the war, but he destroyed a planet and rage havoc throughout the galaxy! And he probably can't kill Megatron because he lost all of his upgrades.

"Optimus, you have to trust me!" Megatron pleaded.

'I'm running out of time,' Optimus thought. Reiner or Megatron?! Optimus closed his optics. He prayed to Primus he was making the right decision.

Optimus aimed both of his blasters at Reiner and fired at his chest. Reiner roared as the force knocked him to the ground. Optimus then put away his blasters before walking up to Megatron.

"I need you to fight the Colossal Titan!" Optimus instructed as he pointed at Bertholdt.

Megatron nodded his head and was about to fly up there, but Optimus grabbed his arm. Megatron was about to ask what else he wanted, but when stopped when he saw Optimus glaring at him.

"Do not make me regret my decision," Optimus warned ominously.

Megatron widened his optics in surprise as Optimus let go of his arm. He didn't say anything before transforming and flying towards Bertholdt. Optimus turned to see Eren running towards him, but he put his servo in front of him to prevent Eren from coming any closer.

"Eren, you need to leave," Optimus declared, causing Eren to roar in protest.

"Eren, this is not the time for protest!" Optimus yelled, "Reiner and Bertholdt are after you! You need to leave and head for Wall Sina! Go!"

Eren was about to protest again, but Optimus pushed him away. Before Eren could react, Reiner's fist slammed into the ground where he once was. Reiner then turned and punched Eren in the face. Eren's face was destroyed as his body skidded across the ground. Reiner was about to attack Eren again, but was shot in his upper back. He turned to see Optimus' blaster charging and ready to fire.

"Your fight is with me!" Optimus declared, "Leave Eren out of this!"

"About time you showed up you fucking slow poke," Levi remarked as he saw Erwin getting off of his horse and walking into the barracks.

"Sorry," Erwin apologized, ignoring Levi's comment, "I had to get more men since more of ours just went into Wall Rose."

"You got people from the Military Police, didn't you?" Levi assumed.

"The Garrison have to guard the wall," Erwin reasoned.

"Well, they'll be the first to die," Levi proclaimed.

"Probably," Erwin agreed.

"Commander!" a voice yelled.

Levi and Erwin turned to see a girl run into the barracks almost tripping over some supplies. She stood up fully before saluting him.

"Sasha Blause!" she greeted.

"You're one of the new recruits," Levi realized.

"Where are the others?" Erwin demanded.

"I don't know," Sasha answered, "I split off from the group so I could go and find my village and bring them to the walls. But there's something I need to tell you. Something bad."

Erwin slightly narrowed his eyes while Levi raised an eyebrow in curiosity.

"What do you mean?" Erwin asked.

"There's just this-I really can't explain it that well," she admitted, "It's just really bad and I tried explaining it to Optimus but he had to go and-"

"Sasha, calm down," Erwin said as he put a hand on her shoulder, "What did you sense?"

"It was just this really bad energy; it wasn't anything like Optimus. It was just dark and it hurt and it gave me chills-"

"Thank you, Sasha," Erwin interrupted, "But right now we need you to keep a cool head. We need as many soldiers as we can get."

Sasha was about to protest, but thought about what Erwin said and took a deep breath.

"Fine," Sasha gave in, "I'll go get an extra 3D gear."

Levi narrowed his eyes as he saw Sasha walk away while Erwin stood up and looked at him.

"I know that look," Levi said, "What are you thinking?"

"I'm taking Blause's senses into consideration," Erwin answered, "Her senses are similar to Mike's. If she's correct, then we might be dealing with something beyond our capabilities."

"Possibly one of Optimus' kind?" Levi assumed.

"Hanji noticed Sasha reacting when Optimus was near her," Erwin explained, "It could be possible she can sense those kinds of titans."

"Well we'll find out when we get to the battlefield," Levi said, "Not much we can do now with all these unprepared men."

"God damn it!" Connie yelled as the soldiers looked at the Colossal Titan," Some of us don't have our 3D gear! We can go up against that thing!"

"But Ymir's in there!" Historia retorted.

"It doesn't matter what happened!" Hanji yelled, "We need to kill the Colossal Titan!"

Armin looked up at the sky to see the flying titan making its way towards them.

"Squad Leader, Move!" Armin yelled as he tried pulled her back.

"What, why?!" Hanji yelled.

Armin pointed to the flying titan before yelping as Hanji tackled Armin out of the way. The flying titan transformed before landing on the wall between the Survey Corps and Bertholdt.

"Who the hell is that?!" a soldier yelled as the flying titan stood up fully.

Hanji narrowed her eyes before they widened in realization. "It's one of Optimus' kind."

Armin looked at Hanji in surprise. "How do you know?"

"Look at the metal design," Hanji said, "And the eyes, too. They may not be blue, but it has a similar look to Optimus, and it seems sentient."

The flying titan looked back at the Survey Corps with his red eyes.

"Ohgodpleasetellmehe' 'twannadie," Connie spoke with a high pitch.

Armin looked straight into his eyes and could see the intelligence that Hanji was talking about, but he also noticed the interaction with Optimus. Do those two know each other?

The flying titan turned back, only to be met with Bertholdt roaring in his face. The Corps covered their ears while the flying titan looked rather unimpressed.

Armin took his hands off of his ears and looked to see the flying titan didn't even move.

"Did you get that out of your system?" he asked, causing Bertholdt to look at him in shock.

"Alright then, shall I slice your throat open first or rip out your tongue?" the flying titan asked as he showed his claws.

"Oh my fuck he has claws," Hanji breathed.

Berthodlt raised his right hand while the titan simply stood there. He slammed his fist down, but the Cybertronian grabbed the object on his back and raised it above his head. Bertholdt's fist made contact with the object, causing a force that sent some of the soldiers back.

Armin tried to keep his eyes open from the wind while Hanji wiped her glasses to see the object protecting him.

"Wait, isn't that a shield?" Hanji questioned.

"Shield?" Armin repeated.

"It was a weapon that was used before the walls came to be," Hanji explained, "There's even on at the castle where we've been hiding Eren."

The flying titan grabbed the hilt on his side and flicked something, causing it to transform into a full length sword. He used the sword to cut the Colossal Titan's wrist, causing the Colossal Titan to scream as the flying titan got into a fighting stance. He placed his shield in front of him while his grip on the sword tightened.

'Don't tell me,' Armin thought, 'He's a soldier too?!'

Bertholdt swung his fists at the flying titan, but the smaller titan jumped over it while the Corps that were close to the hand used their 3D gear to fly out of the way. The titan landed on the wall before taking his sword and throwing it in the larger titan's eye. The Colossal Titan roared while the flying titan jumped and grabbed the sword in the eye socket and pulled it out. He then stabbed the other eye before stepping on the larger titans face and flipping back before landing on the wall.

Hanji noticed the opportunity this presented and turned to her comrades. "Men, this is the opportunity! We cannot let the Colossal Titan live! We need to cut the nape of the neck!"

The flying titan sliced the Colossal Titan's throat as he noticed the soldiers that had their 3D Gear move towards the nape of the neck.

"Attack, now!" Hanji yelled as they all latched onto the nape of the neck.

"Get off of it!" the flying titan yelled at them.

Before Hanji could react, the Colossal Titan roared as he let out clouds of steam to defend himself. The Corps yelled and tried to shield themselves from the hot smoke while the flying titan placed his shield in front of him.

"Fall back!" Hanji yelled.

The Corps members tried their best to navigate through the smoke and landed on the wall behind the flying titan.

"For fuck's sakes, what the hell?!" a soldier exclaimed as he grabbed his burning arm.

"We can't get close to the Colossal Titan because of that steam," Armin realized as he got his grappling hook, only for it to lazily fly in the air, "As long as it's up we can't do anything."

The flying titan placed the shield on his back and the sword at his side before he transformed and flew into the air.

"How...is he flying?" Hanji asked in shock.

"Is that titan flying?" Historia asked in surprise.

The flying titan stopped over the Colossal Titan before transforming and diving. He grabbed his sword and let out a battle cry before beheading the larger titan, unknowing to everyone that he missed the nape of the neck . Everyone's mouths dropped as the flying titan skidded to a stop while the head rolled off the left side of the wall.

The flying titan stood up and looked at his sword to see the blood evaporating from his blade. He then looked over at the Corps, causing many of them to feel uneasy.

"Get back," Hannes ordered Connie and Krista as his hand went for his blade.

"You know went can't fight this titan," Armin whispered to Hanji, "And we don't know if it's really on our side."

"I know," Hanji answered, "But we can't just leave Optimus and Eren."

The flying titan raised an eyebrow at their conversation before looking down the wall to see Optimus and Reiner fighting. Their hands were locked together as one tried to push down the other.

Hanji looked at the still steaming body of the Colossal Titan before looking down at Optimus. Damn it, she felt useless.

The flying titan flipped the sword to where he was holding the blade in his hand before putting two clawed fingers to the side of his head.

"Optimus, I need you to move on my mark," the flying titan spoke.

Armin and Hanji looked in confusion before looking down and seeing that Optimus was looking back at the flying titan.

"Wait, they're communicating?!" Hanji exclaimed.

"Now!" the flying titan yelled.

Optimus let go and jumped back, causing Reiner to stumble forward. The flying titan then threw the blade at Reiner. The blade spun and cut the joint muscle of Reiner's right arm. The blade stabbed the ground as Reiner's right arm fell limp at his side. Optimus took this distraction as an opportunity and punched Reiner in the face.

The flying titan looked over by the tree to see Eren's lying on the ground while his face was almost done regenerating. The flying titan jumped down from the wall and landed on the ground before walking over to Eren.

"Wait!" Armin yelled, but the flying titan simply ignored him.

"Squad Leader, what do we do about the Colossal Titan?" a soldier asked as he pointed to the still steaming Colossal Titan.

Hanji sighed. "We have to wait. Even though the Colossal Titan's been defeated, the steam will prevent us from actually touching the titan shifter."

"Eren!" Mikasa yelled as she landed on the ground to the side of his regenerating face, "Eren! Get up! Eren!"

Eren groaned as he sat up and rubbed his head before feeling a shadow looming over him. He looked up to see Megatron staring down at him with crossed arms.

Mikasa gritted her teeth as she pulled out her last blades, but widened her eyes as Eren pulled her back as gently as possible.

"Eren," Mikasa began.

Eren didn't know what this titan was capable of. He had no clue. Optimus seems to know him, but also fears him? Is this titan a former enemy?

Megatron narrowed his eyes at Eren, analyzing him to try and find out what was wrong with him. He widened his eyes and looked over at Reiner before looking back at the collapsed Bertholdt.

Eren widened his eyes in shock as he looked at the Colossal Titan's steaming body. Did this titan take down Bertholdt?

"I'm not going to repeat this question," Megatron stated, "So answer me this: are you an ally to Optimus or not?"

Eren grew stiff. Should he answer? Should he say no? He couldn't beat Optimus. How can he defend himself against a titan that was armed literally to the teeth?

Megatron sighed in irritation over Eren's weary expression. "I don't really care. But if you try to attack me, I guarantee your blood will spill."

Megatron took the shield on his back and placed it on the ground in front of Eren before walking over to the other two titans fighting.

Eren let out a breath that he didn't realize he was holding and looked down at the shield. Why did he give him this? What is this even?

"Eren, we need to go," Mikasa spoke, "Eren!"

Eren stood up and picked up the shield before looking at his reflection and the unknown writing. Is this a weapon?

Optimus pelted rounds of energon at Reiner, causing Reiner to shield himself away from the blast. It wasn't working. Why wasn't it working?

Optimus looked behind him to see Megatron walking over towards them while casually grabbing the sword that was still in the ground. Optimus saw Reiner running towards him and took a deep breath before closing his optics. When Reiner raised his fists to punch him, Optimus turned and ducked. Reiner widened his eyes as he was met with a clawed fist to the face.

Reiner stumbled back and gritted his teeth, but widened his eyes as Megatron spun and sliced at Reiner with his sword. Megatron sliced at Reiner twice, leaving two cuts in his armor plating on his chest. Reiner tried to attack again, but Megatron turned and Reiner was met with a gun to his face.

Reiner grunted as he tried to wipe the smoke from his eyes. When he did, Megatron sliced his jaw muscle. Part of Reiner's mouth hung open as Megatron sliced open his wrist. Megatron was about to attack again, but Reiner managed to knock Megatron's sword out of his hand. Megatron watched as his sword skidded across the ground before looking at Reiner.

Reiner raised his right hand and tried to punch Megatron, but Megatron grabbed Reiner by the throat and began choking him. The Armored Titan tried to rip off the clawed hand as Megatron lifted him in the air.

Reiner internally cursed and kicked his legs as he felt the grip get tighter. Damn it! The grip was getting too tight. He could end up dead in a matter of minutes.

Reiner widened his eyes as he saw this flying titan smirk at him with pointed teeth. The flying titan then raised his clawed hand and plunged it deep into his chest.

The Survey Corps and Eren looked in shock while Optimus grimaced. Reiner then watched in horror as the flying titan ripped out his heart from his chest.

Megatron dropped Reiner while holding the still beating heart. Reiner tried to still stand, but ended up leaning against a tree and watched as he crushed the beating heart.

"Oh my god," Armin gasped.

"What kind of monster is he?" a soldier asked in fear.

"He is glorious," Hanji smiled wickedly.

Reiner looked at his bleeding chest as Megatron flicked some of the blood off of his hands. He then moved to the side as Optimus charged his blaster and aimed it at his gaping chest. Before Optimus fired, he slightly yelped as Megatron pushed him out of the way. Optimus turned his blaster at Megatron, ready to fire, but Reiner ran through the both of them at high speeds.

'Scrap!' Optimus internally cursed.

Eren widened his eyes as he saw Reiner running at high speeds towards him. Despite Mikasa's cries to move, Eren didn't listen as he grabbed the shield by the metal circles and lifted it to block Reiner's fist. Reiner's fist collided with the shield, the force making his feet sink into the ground.

Eren widened his eyes as he noticed the position that he was in. This thing worked?

"Eren!" Hanji yelled, "The shield is used for defense!"

Eren nodded his head in understand before moving and making a grab for Reiner's broken jaw and ripped it off.

Optimus widened his optics as he saw Eren battling the Armored Titan. He stood up and charged his blaster.

"That blaster's not going to work on that thing's armor," Megatron remarked as he wiped off what remained of Reiner's blood.

Optimus aimed the blaster at Megatron's chest and glared. "Do not test me."

"I wasn't trying to," Megatron stated, "But you know that the energon hasn't been working. And you may possibly hit your friend if the armored one makes the right move."

"Why are you here?" Optimus asked.

Megatron deadpanned. "Are you serious, Prime? You're interrogating me, now? I don't know. Maybe I went into self-exile with my existing body. Because as far as I'm concerned, you're supposed to be dead."

Optimus simply stared at Megatron as the ex-tyrant took a deep breath.

"I don't know what your mindset is right now, but knowing you, you want to protect the humans," Megatron proclaimed, "You don't trust me, then fine. Consider this a temporary alliance,"

Optimus didn't say anything as he lowered his blaster. "And the reason your attack did not work is because a titan can only be stopped by cutting the nape of the neck."

"I've noticed," Megatron said, "But this one is completely armored. We need to find a way to take the titan off-guard."

"What do you have in mind?" Optimus asked.

"How the hell did the Armored Titan get so fast?" a soldier yelled.

"Well it had to deal with something about the legs," Hanji explained, "Armor back in the day didn't completely cover the body. It's somewhat similar to Optimus. The armor wouldn't cover joint areas like the neck, arms, and... the back of his knees!"

Eren tried punching Reiner again, but his hand shattered on contact with the armor. Reiner then turned to the offensive and started punching Eren, but Eren used the shield to defend himself. Eren then slammed the shield twice in Reiner's face before shoving the edge of the shield into Reiner's neck. Reiner then grabbed the shield and threw to the side before kicking Eren in the chest. Eren coughed up blood as he felt his ribs crack under the pressure. Eren's titan form ended up skidding across the floor before slamming into a tree.

"Eren!" Mikasa yelled as Eren groaned and clutched his chest in pain. Mikasa growled as she jumped off of the tree she was on and flew over to Reiner as he walked towards Eren.

"Mikasa!" Armin yelled as she tried to cut open the nape by stabbing repeatedly at it. Armin looked over at the two Cybertronians. The flying titan grabbed his sword while Optimus charged his blasters.

"Mikasa, move!" Armin practically screamed.

Mikasa jumped and flew off the nape of the neck. Reiner then grunted as he felt a volley of bullet near his neck as he tried to block it. Optimus kept a safe distance as he made sure that he was firing at the neck. Reiner tried to block it, but widened his eyes as Megatron dropped kicked him into the wall.

As Reiner got up and raised his fist to attack Megatron, Optimus kneed him in the face and tackled him to the ground. Reiner then started waving his hands blindly as Optimus revved up the wheels on his legs and forced them onto his face. Reiner managed to grab Optimus and throw he metal titan off of him. He wiped his eyes of the tire marks and gasped as Megatron jumped into the air and was ready to stab Reiner in the neck. Reiner managed to roll out of the way at the last second as Megatron sword stabbed the ground.

Optimus skidded across the ground behind Megatron and fired a volley of bullets at Reiner. Reiner's paranoia ended up growing and he covered the nape of his neck with both arms.

Optimus transformed his right blaster into a blade as Megatron stood next to him with his sword. The two ran towards Reiner and sliced at the exposed muscle in the abdominal area. Reiner removed his hands from his neck tried to hit the two Cybertronians. They both ducked at the same time before flipping back and getting into their fighting stances.

The two then ran towards Reiner as he went back to protecting his neck. The two then jumped into the air as they sliced off Reiner's arm through his joints. They both skidded to a stop before turning and cutting through the back of Reiner's knees. Reiner tried his best to balance, but widened his eyes as Optimus and Megatron skidded to a stop before turning around. The two soldiers let out a battle cry as they both punched Reiner in the face. The armor on his face was destroyed as he slammed into the wall with a loud slam.

The Survey Corps looked in shock while Eren looked in surprise. Those two were in perfect sync and their techniques were flawless. How? Is it because they know each other?

Reiner tried to back away from the two titans as they were practically glaring at him. The Armored Titan gritted his teeth before taking a deep breath and letting out a loud screech.

Optimus and Megatron winced at the sound while everyone else covered their ears. Armin looked up at the Colossal Titan and noticed that it was forcing itself up.

"Hanji!" Armin yelled in fear.

"Is he calling for reinforcements?" Megatron asked.

"It's highly possible," Optimus answered.

"OPTIMUS, DODGE!" Armin screamed.

Optimus looked up and his optics snapped in shock as he saw the body of the Colossal Titan fall towards them. Optimus grunted as Megatron pushed him out of the way before the collision caused a bright explosion.

Optimus slammed into a couple of trees before passing out from the impact.

Levi scowled in irritation as he put on his 3D Gear as he heard the Military Police acting like the cocky bastards they were. He's seen them in the slums back in Sina before he joined the Corps. They weren't even going to survive, Erwin was right about that.

"Hey, Levi, where's our prey?" a policemen asked with confidence.

"Oh," Levi began, "Looks like you regret that it's peaceful. We'll end up fighting the titans side by side. So what do ya say if we go in right now?"

Levi began to see their facade cracking, each were making up petty excuses about their jobs in the inner walls. Levi then looked over to see Sasha slightly rocking herself to try and find some relief.

'It looks like it's getting worse,' Levi thought. He could tell her sixth sense and whatever she was panicking about was eating at her, but his didn't exactly know how to calm her.

"The Vanguard Squad is back!" a soldier yelled as he ran in the barracks, "Somebody inform Commander Pixis!"

Erwin and Levi, along with the rest of the soldiers watched as the soldier who came back look at them with fear.

"W-we found no breaches on the wall," he began.

Pixis hummed in response. "I suspected so."

"But the situation is still bad!" He continued, "When our squad was prepared to report to Trost with Survey Corps Squad leader Hanji, she came back with their newest members of the 104th squad that didn't have any 3D Maneuver Gear. Among those recruits, there were three who turned out to be titans!"

Everyone widened their eyes in shock.

"More titan shifters?" Jean breathed, "What do you mean? Three more were titans?! Who-"

"Jean, wait," Erwin instructed, "What happened after their identities were exposed?"

"They engaged the Colossal and Armored Titan!" he answered, "And then a titan that could fly just appeared out of nowhere!"

Everyone seemed to be surprised and confused as Levi noticed Erwin's face full of dread.

"Flying titan?" Pixis raised an eyebrow.

"Men, prepare for battle!" Erwin ordered, "We will ride on the wall to Trost to aid our comrades in the situation!"

"Yes, sir!" some of the soldiers said before they all made their way into the barracks.

"Pixis, I need you to help me get the horses on the wall," Erwin requested.

"Oi, Erwin," Levi began as pushed him, "What the hell's got you worked up?"

"Levi, no titans can fly as far as we're concerned," Erwin began.

"So?"

"Who's the only one that has knowledge of traveling beyond this world?" Erwin enquired.

Levi slightly widened his eyes. "It's one of Optimus' kind."

Erwin nodded his head.

"Well if it is one of Optimus' kind, he or she could possibly be on our side," Pixis reason.

"Optimus' kind is extremely intelligent with technology we can only dream of. He said that he just ended a war, so there may be some of his enemies who aren't exactly satisfied with losing, " Erwin began, "And Sasha has also been paranoid of a dark force, and at the same time this flying titan appears."

"We may be dealing with something beyond our power," Levi concluded.

"And the titan's allegiance is one of the problems we have to worry about," Erwin added.