Chapter 1: A Blast from the Past
"Kiwi!" Odd screamed in the night, waking Kiwi, his dog, up. "Okay. Good, you're okay. I just had the craziest dream ever…" Odd explained to Kiwi, with the dog nodding, because he understood. Odd got out of bed, but, he accidentally tripped over some of Kiwi's chew toys, and made a loud enough noise to wake Ulrich. "Gaah! Odd, what are you doing up this late?!" Ulrich yelled. "Shh! Do you want Mr. Delmas to expel us?" Odd warned. "Alright, alright. But seriously, what are you doing up this late?" Ulrich asked. "I just had this weird dream….Xana is revived, and the super computer is rebooted," Odd explained. "You mean….Lyoko still exists?" Ulrich said. "It was just a dream. Besides, we shut down the super computer 6 months ago," Odd replied. "Yeah, but still…" Ulrich's voice trailed off. "Don't worry, Ulrich, if anything goes wrong, Jeremy will tell us." Odd reassured him, and then the both of them went back to bed.
The next morning, Yumi, Aelita, Jeremy, Sissy, Ulrich, and Odd sat together at the breakfast table. "Jeremy, I had a weird dream last night." Odd told him. "Is it that you actually got a girlfriend?" Yumi joked. Everyone laughed, including Odd. "Alright, that was funny, but back to serious business. My dream was that Xana was revived, and the super computer had been rebooted, and that…..Lyoko still exists…" Odd explained, while everyone had been gaping. Just then, Jeremy's portable laptop started beeping. "Huh? What's this?" Jeremy implied as he opened up his laptop, and then he was speechless. "Jeremy, what is it?" Sissy asked. Jeremy showed everyone the laptop. It had the symbol of Xana. "Oh no. Xana…it's…back." Jeremy said. Everyone gasped. "But I thought Franz Hopper gave us enough power to destroy the thing!" Yumi said. "I thought so too. It turns out…Franz Hopper didn't die completely….and neither did Xana." Jeremy explained. "So..my dream turns out to be true…" Odd implied. "So, Lyoko is still existing…and..ahh!" Odd fainted, with everyone looking at him. "Odd!" everyone yelled, almost loud enough to startle the owl nearby the park. "What happened?" Ulrich asked. "I don't know. Odd just fainted." Jeremy said, and everyone picked up Odd. Sissy was thinking. "Hey, guys….Xana and Lyoko still exist. We should all try and stop it again," Sissy said. "We? Sissy, you want to join the group?" Jeremy asked. Sissy nodded. "Besides, I'm over Ulrich, and I want to have some fun in Lyoko, fighting monsters and such," Sissy explained. The group looked at each other. They figured they could use the extra help, and Sissy would be a good person to explain their disappearances. "Alright, Sissy, but you have to keep it a secret," Yumi said. Sissy put a hand on her heart. "I swear I'll never tell! And, by the way, those Pencak Silat classes have really helped my Martial Arts," Sissy said. "Jeremy, what happened to Odd, though? Is it one of Xana's atta…" Ulrich fainted, and then everyone started to panic. "Oh no! The attack reached Ulrich, too!" Yumi screamed. "Everyone calm down, let's go to the Factory," Jeremy said. They all nodded.
When they reached the factory, Ulrich and Odd were still out cold, and a guest had arrived. "William," Yumi said. Everyone looked at him. "Hi guys. I figured, since Odd and Ulrich are out cold, maybe I could help you guys try and deactivate the tower?" William asked. They thought for a moment. Odd and Ulrich were two of their best fighters, and William knows Xana's weak points. "Alright, but if you get under Xana's control again, you won't have to worry about anything else anymore." Yumi said in a threatening voice. William agreed. "Everyone get down to the scanner, including Sissy, and William," Jeremy said, creating a virtualized Sissy. Sissy's weapon would be a sword, like Ulrich, and her outfit would be a pony tail hair, pink dress, and white gloves, plus a satchel. He seemed pleased with his work. "The super scan says the activated Tower is in the Mountain sector, so that's where I'm transporting you to," Jeremy said. Yumi was virtualized first, then Sissy, then Aelita, and then William. Sissy was pleased with her outfit. "Thanks!" She said. "You have some Bloks, Tarantulas, and Mantas coming your way," Jeremy said. "Our first monsters in a while," Yumi said, getting her fans ready. William got out his giant sword, and Sissy brandished her diamond sword. Then, a black Manta came to William. It screeched, and William sensed it as delight. "It's my black Manta. It doesn't obey Xana anymore, just me," William said, hopping on its back. "Guys, get ready, they're here," Jeremy warned.
"Ahh! Jeremy, can you send me a vehicle?" Sissy asked, dodging an attack from a manta. "Alright, Sissy, I'm sending you the Overboard," Jeremy said, pushing buttons on his computer, and the Overboard virtualized near Sissy. "Hiyaa!" Yumi yelled, while throwing her fans at the Tarantulas. It hit one of them in the eyes, and it exploded. "Guys, I found out something very important. Franz Hopper is connected to Xana, and Xana is connected to Franz Hopper. If you destroy Xana, you will destroy Franz Hopper, and vice versa," Jeremy said. Aelita was shocked at this, and froze up. A Blok was aiming for her, and fired a laser. "Aelita!" Sissy screamed, jumping in front of Aelita just in time to save her. Sissy started to devirtualize, and then she was getting out of the scanner. "Ugh…" she said. She used the elevator to get to Jeremy. "Sissy, good job. You saved Aelita, and now she can deactivate the tower," Jeremy commended. Sissy was tired, though. Suddenly, Ulrich woke up, and so did Odd. "Odd! Ulrich! Get into the scanner!" Jeremy ordered. Ulrich and Odd did so, and soon, they were virtualized into the Mountain sector. "Odd, Ulrich, go west to the canyon, and there, you'll meet up with William, Aelita, and Yumi. Help Aelita deactivate the tower," Jeremy instructed. "Got it. Super Sprint!" Ulrich said, dashing off. "Jeremy, can I have the Overboard?" Odd asked. "Already on it." Jeremy said, and the overboard was virtualized. "Thanks, Einstein!" Odd said, and dashed off, racing, and winning against Ulrich. "Odd! Ulrich!" Aelita cried, she was so happy to see them. Odd fired a lazer arrow at a Blok, and exploded it, and Ulrich sliced a manta in half. William's Manta fired a blue laser at a Blok, exploding it, and making a clear way for Aelita to reach the tower. Aelita ran toward the tower, but got devitalized from a blast from….William?! "Huh? That's me!" William screamed at the darker version. Dark William smiled, an evil smile. Then, he fired a circle of Darkness at Odd. "Gaah!" Odd said, as he got hit in the torso. He rubbed the spot. "Man, that guy's got skill!" Odd observed. Everyone got ready. "Super Sprint!" Ulrich screamed, then dashed up behind William. However, Dark William expected that, and slashed at Ulrich while he was sprinting, causing Ulrich to devirtualize. "Ulri.." Odd devirtualized as well! "Huh? It seems that Odd and Ulrich are connected by some mysterious energy….like…" Jeremy started. "Like what, Jeremy?" Aelita asked. "They're brothers," Jeremy said, and everyone gasped.