Author's Note: This fanfic takes place where the cliffhanger of season 4 left us. Please read and review.

Disclaimer: I do not own any of the characters or world of Mainframe, unless it actually exists and is inside my laptop.

Chapter 1: The Great Escape

Enzo struggled against the Null Bot. His father had stopped speaking, and he wondered of Megabyte could infect nulls. The control room was empty except for them and the few unfortunate binomes who had been infected. Phong lay offline on the ground. "Megabyte finished talking into the vidwindow and shut it with a click. The young sprite wriggled vainly to escape as Megabyte turned his way, a sadistic smirk on his face. "Well, young Enzo, shall you be my first prey?"

"Eat acid, Megabreath!" Enzo shouted at him.

"My, my, even as a copy you have a tongue on you." Megabyte approached, stopping just a couple feet from him. "It may have been the so called Matrix that defeated me, but I will settle for his outdated copy."

"I am not outdated!" Enzo had stopped struggling, his strength leaving him in the grip of the Null Bot.

Grim laughter escaped from Megabyte. "On the contrary, you are quite outdated, young Enzo. A mere back up. You aren't even real. Think about it. The Enzo that became Matrix was one zero in age, you are zero one. Do you know what that means? It means that you don't even have all of Enzo in you, a great deal was never backed up. You are an incomplete sprite."

"Shut up!" Enzo wished he could block his ears.

"Come now, you know I speak the truth. Has Bob or Dot treated you the way they did before? No, they treat you like a second rate binome. You are not Bob's young friend or Dot's brother, but a shadow of something gone. You might as well be a null." Megabyte took a step closer.

"It's not true! It's not true!" Still squirming, Enzo aimed his foot and kicked Megabyte as hard as he could in the shin. Megabyte grimaced and stepped back. "Wretched Sprite. Fine then, I shall take the pleasure in infecting you and having you attack your friends, see how they treat you as a brother then!" Megabyte moved forward again, ignoring Enzo's kicks. He placed a clawed hand on top of Enzo's icon, that horrid smirk on his face as Enzo closed his eyes.

As he began the infection, Enzo's icon glowed, the colors shifting to red and black. Megabyte stared at the glow. "Wha-" A blast of red light flew off of Enzo, sending Megabyte across the room and shattering the Null Bots arms as it too went flying. Enzo fell to the floor. He barely had time to feel his icon, wondering about what happened when the door in front of him slid open and 2 virals ran in. They stopped short in surprise at the seen before them. Before they could act, Enzo dashed through the open door and into the corridor.

Megabyte held his hand to his chest and pushed himself up. "You fools! After him! I want to delete him personally!" One of the virals immediately took off into the hallway after Enzo. The other stood there, torn between the door and Megabyte. "What are you standing around for! After him now!"

"Uh, Megabyte sir, there's a situation." The viral stated in a nervous voice.

Megabyte narrowed his eyes. "Oh and what is that?" He asked icily.

"The, uh, the dog, sir. It awakened and escaped."

The virus let out a curse and slammed his hand into the wall, denting it. "I want all units to track down those sprites trapped in here! Delete the Mutt if it's seen; bring the others to me for infection. And delete Bob as well. I don't want to take any chances. Now get out of my sight!" The viral saluted and ran out the door, which slid shut behind him. Megabyte unfurled the hand that he had held to his chest, the fingers were burnt black. Flexing it once, a small smile flickered on his face. "Well, well dear sister. That was a nice trick you played, infecting young Enzo and giving him some defenses. You always were unpredictable."

Bob and Matrix stood at the intersection in stunned silence as Megabyte finished his speech. Matrix pulled his gun out and began looking down the corridors. "What do we do now Bob?"

"This is bad. This is very bad," was all Bob said in return. He closed his eyes and tried to think of what they could do, but Dot was always the one who worked out the plans and spontaneity would not help right now, especially now that Megabyte controlled the Central office. He hoped that the other sprites had managed to escape before it was too late.

"Bob! Snap out of it! We gotta move!" Cried Matrix as he dashed down a corridor. Bob hurried to catch up as the sound of marching feet could be heard behind them. In a matter of nanoseconds they had managed to lose their chasers and ended up in a deserted hall. They wandered down it for a couple Nanos before they reached a 3 point intersection. The way on the other side was clear. Matrix jogged over and looked around the corner. About 50 feet down this one there was another intersection. On the far side of it, the hall was partially blocked off by crates.

Bob also looked around before moving back and slumping against the wall, his eyes closed briefly. "Enzo, we need to get out of here. I'm going to open a portal and takes out into mainframe."

"What? We can't leave Dot and AndraIa and the rest here! We have to get to them!"

"Keep your volume down, we don't want to- shh!" Bob silenced himself and Matrix and peered around the corner. The sound of dozens of running feet could be heard. Suddenly the young Enzo bounded around the corner and dashed behind the crates, closing his eyes. A few nanoseconds later, Frisket joined him.

"It's Enzo; we need to get to him and help!" Matrix tried to run out towards the boy, but Bob grabbed him and pulled him back. "We need to get out of here and come back for the others."

Matrix shoved Bob's hand off his shoulder. "What are you processing Bob? Fine, we can get out, but why leave Enzo when he's right there?"

"Because it might be Megabyte, we have no idea what happened to Enzo and the others."

Matrix scoffed. "He's not Megabyte."

"You don't know that."

"Yes I do. Look, Frisket is with him. Frisket can detect viruses; he wouldn't be with Enzo if it were Megabyte."

"Then why didn't he alert us to the megabyte when he looked like me?"

"Because he acts the same way to you normally."

Bob processed this for a moment before nodding his head. "You're right. Okay lets go pick him up and I'll portal us out of here."

Matrix and Bob peered around the corner again. Enzo and Frisket were still crouched down behind the crates and dozens of Binomes were running past. After a few more nanoseconds, the last one trudged by. Enzo peered around the crates and prepared to run.

Bob and Matrix hurried down the hall to Enzo before he moved. Matrix put his hand on Enzo's shoulder. The young sprite jumped and almost yelled. He whirled around, his eyes big. Tears stained his green cheeks. When he saw who it was he began punching him uselessly and crying. "It's your fault, it's all your fault!" Matrix wrapped his arms around the boy who stopped moving. Bob looked down the hallways and then held his left arm out. "Glitch, portal!" The toolkey whirled to life and jumped off his arm, creating a silver orb a few feet away. Inside, the reflection of Energy Park could be seen.

"Come on." Bob motioned Matrix through who picked up the young Enzo and hurried into the portal. Frisket growled once at Bob before following. Taking one last look around, Bob jumped through the portal himself, the orb winking out of existence behind him.