The Sensei, Nathan, Lloyd, and Tatenashi slowly descended the hill. "How are we gonna get to the academy?" Nathan asked the Sensei.

"With that." Tatenashi pointed at the monorail running from the academy to the mainland. "That's the only way on and off the island with ease. We'll sneak on it and hitch a ride to the IS Academy on the monorail." The five snuck through the city, avoiding Nindroid after Nindroid, mechs, tanks, and the hover copters until they reached the monorail station.

The academy's monorail pulled into the station, and five Nindroids got off. This gave Sensei Garmadon an idea. "Quickly," he whispered, "grab those Nindroids and take them out, Lloyd and Nathan, but leave their suits." As the Nindroids walked by the area the five were hiding in, they all grabbed the Nindroids, quickly pulling them in and letting Lloyd and Nathan take them out. When the five stepped out, they were now dressed like the Nindroids. A few damaged mechanical pieces were shoved into their Nindroid robes to help make the disguises more believable.

Cautiously, the sensei, ninja, and Tatenashi walked aboard the monorail. Aboard the monorail sat several other Nindroids waiting to head to the academy. The five sat down, with Nathan and Lloyd on each end. The Nindroid beside Nathan turned its head and stared at him. "Droid N-71399, what are you and Delta Squad doing back on the monorail?" Its mechanic voice questioned Nathan.

"Uh…" Nathan frantically looked at the others. They all shrugged. "We received a transmission from General Cryptor to return to base for a new assignment." He tried his best to imitate the Nindroid's voices.

The Nindroid continued to stare at Nathan, making Nathan and the others more nervous than they already were. "Understood." The Nindroid nodded, turning its head back and staring straight ahead. The monorail then began to leave and headed towards the IS Academy.

Once the monorail arrived at the academy, the Nindroids, in a single file, disembarked the monorail with the disguised group at the back of the line. As the line of Nindroids got closer to the campus' main facility, the five decided to split off from it and head to a different part of the campus. They ran inside a storage building next to it. "Alright," Wu whispered, taking off his Nindroid mask and putting his coolie hat back on. "Ninja, you head to the factory beneath the school and destroy the factory. My brother and I will join Tatenashi at the dorms and help her free her classmates."

"Ay ay, Sensei." Lloyd agreed. Nathan and Lloyd put their Nindroid masks back on and headed to the main facility to enter the campus's depths. As soon as the two ninja entered the facility, the sensei and Tatenashi headed to the dorms in their Nindroid disguises.

They all found that their Nindroid disguises allowed them to travel around the campus with a suspicious amount of ease. This caused the Sensei to bring their guards up and were prepared for anything. Finally, the three arrived at the dormitory, where the guards outside stopped them. "Halt!" One of the two guards pointed a spear at them. "State your purpose here!"

"The General has commanded us to grab a student of interest and bring her to him," Garmadon spoke aggressively toward the guard. The two Nindroids looked at each other and back to him. The Nindroid lowered his spear and allowed the three to pass into the building.

"That was impressive, Sensei." Tatenashi congratulated.

"Being evil for most of your life helps with such moments." The older man smiled under the Nindroid mask at her.

The three entered an elevator and went to the second floor, where the dorm rooms began. When the elevator doors opened, they saw a highly damaged hallway. Lights were hanging from the ceiling, chunks of the walls were missing, and the carpet floor was ripped to shreds. Each dorm room door had a lock on the handle and a flap at the bottom, which was used for the Nindroids to slide food into the dorm rooms. These were no longer dorm rooms; they were prison cells for the students.

Tatenashi immediately ran at one of the doors and activated her IS unit's arm. She grabbed the lock and crushed it, allowing them to enter the dorm room. When she entered the room, she was attacked by two of her classmates, thinking that she was a Nindroid. "You won't get us, you mechanical menace!" One of the girls shouted as she was softly hitting Tatenashi.

"Stop!" Wu shouted. "She isn't a Nindroid!" The three all unmasked themselves, revealing their identities to the girls.

"President!" Both girls screamed with joy as they squeezed Tatenashi in a massive hug.

"You've come to rescue us!"

"I have, but I'm gonna need everyone's help. When we break the locks, it's up to you all to spread the information that we will escape in the tunnel line below campus. It leads to large boats that the school uses for offshore training. You'll all use those boats to get to the mainland and escape the campus."

"But Nindroids are sure to be all over that area!" One of the girls panicked.

"Not for long," Tatenashi smirked.

Meanwhile, Nathan and Lloyd were making their way through the facility. "How are we going to get down to the factory?" Nathan asked Lloyd.

"I don't know. I don't think we thought that far ahead." Lloyd said.

"I don't think we ever think ahead," Nathan responded as the two slowly walked around the facility, trying to find a way into the factory. Then, not too far in front of them, walked Cyrus Borg. "I've got an idea," Nathan whispered to Lloyd. Nathan motioned for him to speed up, and they stopped Cyrus Borg. "Dr. Borg," Nathan started doing his Nindroid impression again, "General Cryptor has requested your presence in the factory. He says there is an issue with his new body, and we would like you to look at it." The corrupted Cyrus Borg let out a sigh and nodded. He then led the way for the two disguised ninja to an elevator deep within the facility that would take them down to the factory.

The two stood behind Cyrus Borg in the elevator. Nathan and Lloyd looked at each other as they slowly pulled out their elemental techno blades, getting the techno blade portion ready. Both let out a scream and tackled the corrupted Cyrus Borg. Lloyd struck him with the techno blade side of his weapon and hacked the doctor, finally freeing him from the Destroyer's hold. "Oh my, what is happening? What am I doing here?" Cyrus Borg grabbed his head, removing the metal that covered his face.

"You were under the Destroyer's control, Dr. Borg, but we saved you," Lloyd said, pulling up Cyrus Borg and his mechanical-legged chair.

"Thank you, Lloyd." Cyrus Borg put his hand on Lloyd's shoulder. "Now, how do we get out of here?"

"We can't leave yet, sir," Nathan told Cyrus. "We've got to do what we can to destroy the factory here in the academy and stop the production of Nindroid."

"I know just where to take you." Cyrus Borg assured.

The elevator had reached the factory and opened to reveal to Nathan and Lloyd the mass production of Nindroid pieces; they could see a portal at the end of the factory line where the fully built Nindroids were being sent so that they could receive the stone armor to make them indestructible. "Sorry, Dr. Borg, but we can't have any Nindroid down here knowing we've saved you. You'll have to put your metal face plate back on so they believe you are still under the Destroyer's control."

"Very well." Cyrus reluctantly put his face plate back on and began forcing his chair into the factory. "There is a central system that controls the factory line and the portal back to Ninjago." He whispered carefully to the two. "Stop that, and you should have no problem putting the rest of the factory offline for good."

The three passed Nindroid after Nindroid with no suspicion being placed on them whatsoever. The three had made it to the factory's central power room. The room had a purple glow created by a purple energy orb in the center of the room, with two mechanical cones holding it in place above and below it. Four Nindroids were working in the room and immediately directed their attention to the three as they entered. "Dr. Borg, what are you doing here?" A Nindroid asked. "Your inspection isn't until tomorrow. This is highly unusual."

"The Destroyer demands it be checked now!" Cyrus Borg tried to act as tough as he had been when he was corrupted. "He is on high alert with the Ninja being back in this dimension and wants to ensure that the Nindroid output is at its maximum!"

The Nindroids looked at each other and then back at Cyrus. "Proceed." The Nindroid allowed.

The three stepped deeper into the room, and the door behind them closed. "Thank you." Lloyd smiled. He and Nathan used Spinjitzu to get rid of their disguises and to use on two Nindroids on the four Nindroids and chucked them into a pile in the back of the room.

The two Ninja stepped up to the power unit and stared at it. "So, how do we turn this thing off without blowing it up?" Nathan asked the inventor while still staring at the power unit. The two ninja heard the door sliding open behind them and quickly turned around.

"You don't." Laughed General Cryptor, holding tightly onto Cyrus Borg with one of his swords at the newly freed man's throat. Cryptor had a brand-new beefier body. He had two large tubes going from his body to his chest piece, same as before, but behind those tubes lay a more advanced mechanical system. He was no longer missing much of his face plating under his mask and now had purple markings like Cyrus Borg's former assistant, PIXAL. Compared to his former GI, he now had armor covering much of his body and looked more like a ninja version of a stone warrior than the rest of the Nindroids.

"Let him go, Cryptor!" Lloyd demanded. "You saw what we could do to you at the temple!"

"I saw what the orange ninja could do, and you two aren't him." He pointed his sword at them.

"You want a fight, Cryptor? We'll give you one!" Nathan pulled out his elemental techno blade, activating both ends.

"I would love to tear you two children to pieces, but I don't think you'll be doing much fighting."

"And why is that?" Nathan questioned, he and Lloyd holding their elemental techno blades at the ready.

"While I was being rebuilt, I had a lot more time to research you three ninja, and I found some fascinating information on you in the academy's archives, Nathan." Nathan and Lloyd looked at one another. "I found that you went on a mission with the other two ninjas not too long before the Overlord returned to become the Golden Master—a mission where you had to save your brother from a woman controlling a mech that was draining his energy to power it. In that mission file, it said you met a woman."

This captured Nathan's attention. "What have you done?" Nathan began to worry.

"Nothing wrong. Yet. However, I talked to the Destroyer regarding this woman yesterday, and he graciously allowed me to visit the Gakuen Babysitters Dimension, where this Sammie woman lives." Cryptor glared at Nathan as he began to clench his weapon hilt tighter. "It didn't take much force to rip her away from those children and drag her here, where she will watch as the man she loves is crushed by the hands of her future ruler!" the screens in the room began to turn on, showing a tattered and bruised blonde girl lying on a floor somewhere, with her hands chained to a wall. It was Nathan's love, Sammie.

Nathan's eyes widened. "You will pay for hurting her, Cryptor." Nathan spoke softly. "YOU WILL PAY!" Nathan charged at the Nindroid General.

"NATHAN NO!" Lloyd shouted in panic. Cryptor pushed Cyrus Borg out of his way and fired his chest laser at Nathan, where it struck him right in the chest. Nathan crashed onto the ground, unconscious. General Cryptor began to laugh maniacally as more Nindroids marched and grouped up behind him.

"Surrender, green ninja." Cryptor pointed his katana at Lloyd. Lloyd had no choice. He threw his elemental techno blade on the ground and put his hands into the air. "It seems at least one of you three is smart." He laughed as Lloyd scowled at him. Nindroids surrounded Lloyd, pulled his arms behind his back, and put him in vengestone cuffs. They did the same with Nathan after lifting his unconscious body off the ground.

"What fate have I led these poor children to?" Cyrus Borg, out of his mechanical chair on the ground, whispered to himself. Nindroids grabbed him and began to take the three out of the factory and up to the main facility.

Meanwhile, the Sensei and Tatenashi were freeing students and getting them to the tunnel system to head to the training boats. "Thank you, president!" one girl said as Tatenashi released her from her room.

"Okay, last few rooms," Tatenashi told the Sensei. The last room was on the top floor, but it seemed different than the other dorm rooms. It had way more locks than any of the other rooms. To Tatenashi's knowledge, the only students and teachers that warranted custody like this were already under the Destroyer's control. Tatenashi rushed to the room and used her IS unit to break the locks. The Sensei had caught up to her, freeing the rest of the imprisoned students. She slowly opened the door to see a blonde-haired girl lying on the floor, her wrists chained to the wall. Tatenashi grabbed the chains and ripped them off. She wasn't a student here, but Tatenashi seemed to recognize her somehow.

The girl was significantly injured. "Who-who are you?" The blonde girl was barely able to get out.

"I'm the student council president, Tatenashi Sarashiki. And you must be the Sammie I've heard so much about from Nathan." Tatenashi smiled, activating her other IS Unit arm and lifting Sammie. Tatenashi remembered Nathan showing everyone pictures of her when he returned after rescuing his brother from Shiori Tomisuki's mech fiasco. Nathan was so happy to show off his girlfriend to everyone then. "Don't worry. We're going to get you out of here." Tatenashi assured, carrying Sammie out the door with the Sensei behind them.

"I wouldn't be too sure about that." A voice bellowed from down the hall. A demon greeted the four of them, the demon being none other than the Destroyer himself.

The two Sensei jumped in front of Tatenashi, staffs at the ready. "Tatenashi, you get out of here in whatever way you can. We will slow him down. Now go!" Garmadon ordered the girl. Tatenashi nodded and summoned her spear to carve through the floor to get to the sewer system. She was on her way now to meet up with her fellow students.

"Now, this is a fight I've been waiting a long time for." The Destroyer cackled as his long black robe followed him, and his horns scrapped the top of the hallway. "Do you two really think that you have any chance of stopping me?"

"That does not matter," Wu said. "All that matters now is keeping our students and friends safe."

"Well then, let's see what you two have to offer me." The Destroyer's claws flew out of his robes, and he charged at the Sensei, who blocked both of his hands with their staffs.

The two Sensei put every ounce of force into holding his claws back. "Our father told us how much of a hero you used to be," Garmadon grunted, still trying to hold back the Destroyer. "How the mighty have fallen." Wu released his push against the Destroyer and jumped up, smacking the Destroyer in the face with his staff.

"He said you once helped them protect Ninjago and the Dimensional realms, but then you allowed the Overlord to corrupt you with false promises of power!" Wu said, trying to smack the Destroyer again with the staff. The Destroyer grabbed his staff and swung him into Garmadon, knocking the two against the wall. As quickly as they could, the Sensei returned and prepared themselves again. However, something seemed different; they could see anger mixed with hesitation in the Destroyer's eyes.

"My brother and your father were fools!" The Destroyer declared. "Everything I did, I did for them! They didn't understand the beauty the Overlord and I would bring to Ninjago! The peace that would have rained!" The two Sensei charged again at them, throwing attack after attack at the Destroyer with their staffs. "Now, neither of them are here to stop the inevitable end of the balance and see the peacefulness brought by the dark under my rule! I will be the one to bring that peace to every dimension!" Tentacles shot out from his robes, grabbing the two Sensei and slamming them into Sammie's imprisoned room.

"Then you are no better than the Oni you spawned from!" Garmadon shouted at the Destroyer, taking his staff and hitting the tentacle off him and Wu. The tentacles retreated into the Destroyer, and the two Sensei began to run at the Destroyer again.

"An Oni that neither you nor the boy can defeat!" The Destroyer's hands began to create purple energy, which he shot at the two Sensei, sending them both crashing through two separate dorm walls.

That was it; the Sensei were too weak and old to continue fighting. "Hunter will stop you!" Wu raised his head and looked at the Destroyer. "He has a power within him that you will never be able to master. The power of compassion."

"That is why I will use that power against him as he watches me kill his new family." The Destroyer laughed. A group of Nindroids appeared and walked past the Destroyer, picking up the two Sensei. "One more thing." The Destroyer knelt so he could be face-to-face with the two older men. "Did you think I didn't know where you all were hiding? I am still connected to every power source in this dimension, and I sensed an odd lab belonging to Tabane Shinonono activate, even if it was just a minute energy source. I've sent some old friends of his to capture him and bring him to me so that this can be ended once and for all.

"I won't let that happen." A female voice came from behind the Destroyer. It was Tatenashi. She only activated her IS units' arms and pointed her spear at the Destroyer.

"This is surprising indeed." The Destroyer turned. Tentacles began slowly coming out of his body and floating beside him, pointing at Tatenashi. "Tell me, young one. If these two powerful beings can not stop me, what makes you think you can? A little tin suit?" He launched the black tentacles at Tatenashi and grabbed her arms and legs. The Destroyer began to march over to her slowly. "All you've done is give me another victim to help torture my nephew with." He cackled as he began to march away with Tatenashi, Wu, and Garmadon.

Back at Tabane's lab, she had increased her lab's energy, assuming that the mission that the others were on would help keep the Nindroids and Destroyer distracted and was working hard developing the ammunition and coating for teams RWBY and JNPR's weapons. "Alright, your weapons and ammunition should be ready in about five minutes." The teams' weapons were put in tubes, like the one my elemental techno blade was in, against the wall, and slowly, a light bluish coating began to appear on them, and one tube was starting to fill up with a light blue and orange dust for them to use as ammunition.

"I'll give credit where credit is due." I looked at Tabane. "You really are a genius."

"I know," Tabane smirked, still typing away at her computer.

Out of nowhere, an alarm started going off. "Who could have found us?" Weiss asked Tabane.

Tabane pulled up a security camera on her screen only to see the entrance to her lab explode, and Ichika, Chifuyu, and every other member of the IS Crew under the Destroyer's control march in. "Hunter, grab your weapon. It looks like things are about to get fun." The mad genius Tabane Shinonono laughed as the rest of us looked at each other concerningly.

The security cameras began to go out as Ichika and the others got closer and closer to the lab. I grabbed my elemental techno blade and activated it. "This time, I will save you all." I confidently declared to my corrupted friends. "I will save everyone."