A/N: Thank you all for the reviews here's Ch 22 coming at ya. Enjoy and as always see ch 1 for disclaimer

Ch 22 All Coming Back Now

The group all gasped when they realized that Donnie wasn't attacking either April or Casey. Instead he lunged for Shredder, taking him by surprise and taking him to the ground. But Shredder quickly recovered and threw Donnie off of him. "What do you think you're doing?" Shredder boomed. "How dare you attack your Master!"

"You're no Master of mine!" Donnie snarled, glaring at the Shredder. "Splinter is the only Master I have!" With that Donnie swung his bo with all his might, hitting the Shredder hard. But to his shock his bo snapped clean in half. "What the.." he stammered, his brown eyes wide. Shredder reached up and threw Donnie as hard as he could sending him into Leo and Mikey. The three brothers went crashing to the ground

"Donnie is that you bro?" Mikey asked, looking at his slightly older brother.

"Yeah Mikey its me," Donnie said with a smile. "I'm back."

"Finally," Casey grumbled. He and April had reached Splinter by now and were helping the brown coated rat to his feet.

"Are you ok Sensei?" April asked, looking at Splinter with concern.

"Yes I am fine April," Splinter replied with a smile as he rubbed his head. Leo, Donnie and Mikey raced over to their father, all three of them concerned about the hit he had just taken. Raph soon joined the group along with Karai. Slash and his team were once again trying to take down the Shredder but they weren't having very much luck on that front.

"Father are you alright?' Donnie asked, putting his hand on Splinter's arm.

"Donatello?' Splinter said, the surprise clear in his voice. "You are yourself again?"

"Yes I am," Donnie said with a smile.

"Looks like some of that antidote the Doc had managed to get in," Raph commented. Just then they group heard grunts followed by thuds. They looked over and saw that once again Slash and his team had been floored by the Shredder.

"So what now Leo?" Donnie asked, looking at his oldest brother. But before Leo could respond suddenly Karai cried out.

"I've got an idea," Karai said suddenly. Before anyone could respond the teen raced into action. Or rather she raced towards the Shredder. Shredder raised his blades to strike Karai. Then the teen said something that shocked everyone. "Father stop its me!" she cried out. Shredder stopped in mid swing, surprised by Karai's words. "You don't want to do this Father," Karai said, trying to sound as convincing as possible.

"So I am your father am I?' Shredder said, the suspicion clear in his voice. "How convenient."

"Look I know what I said before," Karai said, trying to sound as regretful as possible. "And I'm sorry. But I know that deep down you really do care about me and what happens to me. Just like I care what happens to you deep down. After all you did raise me and teach me everything I know."

"Damn she's good," Raph whispered with a grin. Splinter was watching his daughter as she was talking to the Shredder. Just then Karai shot him a look. Nodding Splinter said, "Come we must go."

"Go?!" Raph cried out. "But Sensei.."

"No Sensei's right Raph," Leo said, putting his hand on Raph's shoulder. "We got Donnie and that's the important thing. We don't stand a chance against this new and improved Super Shredder."

"Yeah plus his goons are waking up," Casey said, indicating Tiger Claw and the other mutants that were starting to come too.

"As much as I hate to say this they're right," Slash said. "Lets go." With that the group began to fall back. All except for Leo.

"Karai come on!" the blue masked turtle shouted after making sure the rest of the group was out. "Lets go!" With that Karai delivered a hard kick to Shredder's chest, catching him off guard. The armor clad man went sailing backwards and crashed right into Tiger Claw, knocking them both out

"Karai c'mon," Leo said, grabbing his sister's arm. "Lets get out of here."

"No," Karai said, surprising Leo. "I'm staying Leo."

"What?!" Leo exclaimed, his blue eyes wide with shock.

"I need to stay Leo," Karai said, a determined look on her face. "I have to get my vengeance."

"Karai now's not the time," Leo declared.

"When is the time Leo?!" Karai cried out. "There's never a right time. But I'm here and I'm not backing off this time. Its time to finish this once and for all." Leo opened his mouth to protest but the look on his sister's face made him shut it again.

"Ok," Leo said after a minute. Karai gave her brother a look of surprise. "If you want your vengeance now then I'm going to help you," Leo continued. Karai opened her mouth to protest but Leo quickly spoke up. "And nothing you can say is going to make me change my mind," he said, his blue eyes locking onto his sister's brown ones.

"Thanks Leo," Karai said with a smile. "Lets do this," she growled, gripping her sword. The siblings were about to attack when suddenly they felt themselves being lifted off the ground and out the door. "Hey!" Karai shouted, trying to pull free from her captor. "What the Hell?!" Karai and Leo looked and saw that it was Leatherhead that had taken them away.

"Put us down Leatherhead!" Leo shouted.

"I am sorry my friends," Leatherhead said as he continued to run towards the sewers. "This is for the best." Leo and Karai tried their best to break free but after a few minutes they realized they weren't going to be able to do so. So the pair reluctantly gave up and were silent the rest of the way back to the lair.

TMNTTMNTTMNT

A little while later the group was all together back at the lair. "Ok you can put us down now," Karai said with annoyance. Leatherhead obliged and put the siblings down. Splinter had stood in front of them and Karai whipped around to face her father. "Why did you tell Leatherhead to get us?!" she demanded.

"I did not want you and Leonardo to get hurt Miwa," came Splinter's clam response.

"We could have handled it," Karai declared, crossing her arms.

"Yeah I think we all know you're full of shit Karai," Raph scoffed from his place on the couch.

"Who the Hell asked you Raphael?!" Karai snapped, glaring at her red masked brother.

"He's right you know," Donnie said from the sidelines. "None of us stand a chance against Shredder now. He's too powerful. The mutagen I made is stronger than anything before. He would have killed both of you."

"Yeah no kidding Donnie," Leo snapped before he could stop himself. "But at least if I would have died then maybe Karai could have save herself."

"Leo," Mikey began, his voice coming out very soft. "You don't really mean that do you? You don't still want to kill yourself right?" Mikey looked at his oldest brother with tear filled blue eyes.

"Mikey I.." Leo began. "I don't want to die. But sometimes that's what's necessary in order to make sure the evil ones are taken out for good."

"Oh Leo," Donnie whispered, taking a step towards his brother. "I'm so sorry. This is all my fault."

"Donnie that's not.." Leo began.

"Yes it is true," Donnie cried out. "If I hadn't gone out that night and gotten capture then none of this would be happening right now. I know my capture is what made you feel so guilty and get so depressed. And I'm so sorry for that Leo."

"Donnie it wasn't your fault," Leo declared.

"It wasn't yours either Leo," Donnie said with a small smile. "But don't worry Leo I can fix this. And I will."

"How?" Raph asked, looking at his slightly younger brother.

"I made the mutagen that created Shredder," Donnie began. "And I can make the anti mutagen. Once that's made he'll be take out once and for all."

A/N Hope you all enjoyed ch 22. More to come in ch 23. Review please.