The four turtles all took out their weapons at the ready to defend themselves from the ninjas. They were seriously outnumbered, but at least Leo wasn't here by himself. Last time, facing all the ninjas by himself nearly cost him his life, as well as a few other times.

The turtles all tried to make sure to stay close together to defeat these ninjas. At least staying in a pair.

Ninjas took Mikey down into the building, and Raph went after him. Don and Leo were up on the roof a little longer, but joined them.

Soon, it looked like they were all backed against the wall and all the ninjas were facing each one of them, one at a time, or in a group, but all wanting a chance to deal with the turtles. Their boss was gone, but it didn't make them any less enemies.

Soon, there were some mobsters that drove up outside and decided to blow up the building. They had put dynamite up on the outside of it.

The building being blown up came as quite a surprise to the ninjas and the turtles and they all tried to get out as fast as they could. Don advised getting beneath a bar that would protect them from the whole roof falling on them.

After the building was destroyed, the turtles were struggling to hold the bar up.

"I really hope doing the right thing was worth this, Leo!" Raph growled.

"Getting involved was not a mistake, Raph!" Leo retorted back.

"Guys! Let's continue this discussion elsewhere!" Don said, "On my mark, one, two, three!"

The brothers had all been shaking and struggling to hold the bar after some debris had come crashing onto it. It had saved them from being buried under the debris of the building.

"At least someone had a good idea that didn't kill us." Raph said.

Leo glared at his brother angrily. "So you're saying this is my fault?"

"Yes, I am. This wasn't our fight to begin with!" Raph shouted back at him.

"Yeah, well. Guess what, hothead?! It's our fight now!" Leo yelled back.

"So this was the honorable thing to do? Stick your nose where it didn't belong?!" Raph mocked him.

"We have to stop this war, Raphael!" Leo shouted back.

"Guys, we have company." Mikey said. There were a bunch of ninjas gathering around them now.

The turtles were soon defending themselves against the ninjas.

Mikey soon took to the rooftops, with a bunch of ninjas chasing after him. His three bros were locked in combat with the rest of them.

Mikey was one fast turtle. He grabbed a satellite pipe and threw it at one of the ninjas and it hit him dead on. The rest kept on coming. He ran and jumped over several rooftops, leading them further away from the fight.

Soon, he came to a rooftop that had a further distance to the ones next to it, and it had clothes lines in between them. Mikey saw an advantage here. He saw something that could help him. He jumped down and the ninjas followed.

When they touched the ground, the ninjas didn't see him anywhere. They soon found an open door and went in there, thinking he had gone in there.

Up above, Mikey came out of his hiding spot. "Ha! King-sized bedding. A ninja's best friend." He said in a low voice.

At April's building, April had gotten some new products to add to the list to sell. Casey and Randall were helping her to bring them in and stock them. The shop was closed at this time.

Casey, at the moment, was carrying some glass tea cups on a tray. April saw that and he looked like he was about ready to drop them. She came over.

"Can I take that from you, Casey?" April asked.

"What? Don't you trust me?" Casey joked.

April took the tray from him anyway before he could drop it. "About as far as I can throw you, Casey Jones." She said.

Randall had seen it and smirked. He knew Casey was often clumsy when it came to the fragile things. So he didn't blame April for being protective of it. It was her livelihood for the moment.

But then, Mikey came into the store and stood right in front of her, surprising her. It made her drop the tray and glass going everywhere.

"Oh! What do you want?" She said in a disgusted tone. "Why do you keep making me do that?"

"It's a ninja thing." Mikey said. "Sorry. But my bros and I are currently in the middle of this big fight-."

"Big fight? Why wasn't I told?" Casey asked.

"I was being chased by a bunch of Foot ninja." Mikey continued.

"Whoa, whoa, whoa, whoa! Michelangelo, you're telling me that you came in here because you were being chased by a bunch of Foot ninja?! My new building that had been burnt to the ground and rebuilt building because you're being chased by a bunch of Foot ninjas?!" April exploded at him.

Randall heard those words too. He was glad he hadn't been here when that had happened then if it made her temper explode like that.

"Yeah, right, I was- oh sorry, April. I wasn't thinking. I better get out of here before they find me here." Mikey said.

"Wait, Mikey, I'll come with ya. April, can we borrow your wheels?" Casey asked.

"Absolutely, I mind!" April said.

"Then I guess Mikey and I can just stay here." Casey said sarcastically.

"Uh, it's on the street." April tossed Casey the keys to her van.

"Thank you." Casey said and he and Mikey left.

Randall walked up next to her. "I should go too."

"Randall, I need someone here to help me finish stocking these supplies. And if I need backup in case they do show up here." April said.

"Alright." Randall gave in. He didn't really want to face the Foot anyway. But he did want to be there for his friends. He ended up staying out of this fight.

When Randall walked away to get the next batch of supplies, April looked out the window and said, "Stay safe." She meant that for all the turtles and Casey.

Casey drove the van to where Mikey said his brothers were to pick them up and get them out of the predicament they were in.

Raph and Leo were still arguing here and there. Then a green and white van pulled up. Mikey opened the door. "Anyone need a lift?"

"Mikey!" Raph greeted happily.

All the brothers smiled that Mikey had gotten some help that was able to get them out of that jam. They hurriedly got in and Casey got them out of there. The turtles hadn't been sure they were even going to make it out of that fight.

Leo told Casey where to go because he didn't want to risk leading anyone back to the lair.

….

At the airport, Karai's jet had landed, and she and her two henchmen went to track down these turtle men who had destroyed her father.

On the news, there was word of a building that had been demolished out of nowhere and fire trucks were there now, putting out the flames. Karai decided that the turtles had been there and she and her men would look around that area. Surely, they hadn't gotten far from there.

….

Leo directed Casey to take them to a building he had decided to stay on in an old water tower that was empty of water. He had made a temporary home there and his brothers and Casey were now here to figure out their next move.

Raph was still miffed that his brother wasn't taking the hint and they should stay out of the gang wars.

"So, what's with the new digs?" Casey asked.

"I was staying here because I wasn't going to risk leading anyone back to the lair should I have been followed." Leo replied.

Raph gave a loud growl of anger. "Again, I say this isn't our fight, Leo."

Then Leo and Raph started arguing some more. Mikey and Don were beside themselves and sat down, then Mikey said to Casey, "You might want to have a seat. This could take awhile."

Outside, what they didn't know at the moment, was that some Japanese humans had tracked them down. One of the men set an explosive on the bottom of the tower. It went off after ten seconds.

Leo and Raph's voices had been what had drawn Karai and her men there.

The turtles and Casey were all taken by surprise when the explosive went off, but it gave them all just enough notice to be prepared for a fall. The floor gave out from under them and they all fell. The turtles all landed on their feet from years of practice and it wasn't that far a fall. Casey on the other hand, landed on his butt, his golf bag beside him.

The two men were there to see first. Then Karai jumped in front of them.

Casey got to his feet and all the turtles and Casey got their weapons ready. They knew they were under attack, but who was this?

Karai took out her sword. "Turtle men. I have a matter to discuss with you. My name is Karai. I am here to restore faction to the Foot."

"I got your order right here, Lady!" Raph growled. He pulled out his sais, ready for a fight.

"Stand down, Raph." Leo ordered.

"No!" Raph yelled back. "I'm really sick of listening to you!"

"I said, stand down, Raph." Leo repeated.

But Raphael didn't listen, and then he decided to attack Karai and her men. Karai fought back and knocked him onto his shell. Then Karai jumped into the air and was fixing to bring her sword into Raph's chest.

Leo wouldn't let her hurt his brother and blocked her sword with his. Then he kicked her away.

She caught herself and then her men attacked.

Leo stood where he was while Don, Casey, and Mikey charged in to take on her men. Then Leo joined them.

Leo took on Karai while his brothers fought the sidekick men.

The ninja men easily could knock Don and Mike and Casey all aside. It happened several times.

Raph and Leo were soon fighting Karai together, and she was quite formidable. She was fast in her movements.

At one point, she had kicked Leo down, and as she was coming in for the hit, Leo saw her coming and braced himself and kicked her away that was similar to how a horse kicked with its hind legs. It knocked Karai clear away, and down near the wall.

She was out for a moment and Leo walked over to her, thinking it was over, but stayed alert. But he wasn't far enough away and she came to and kicked him in the chest, knocking him down. Then she jumped next to him, one of her feet put on his stomach with her sword pointed at his head.

"Now, as I said, we have a matter to discuss, with or without your leader. It is your choice." Karai warned Leo's stunned brothers and Casey.

Leo did feel afraid for his own life, but was trying not to show it. He had to be strong for his family.

Drop your weapons!" Karai ordered.

None of them moved.

"I said, drop your weapons." Karai said again. She moved her sword closer to Leo's throat. Leo groaned and looked at the others.

The others finally gave in and dropped their weapons, all but Raph. Then Don said to him, "Uh, Raph, didn't you hear the nice lady with the knife?"

Raph growled, thinking he would try to save Leo, even though he was still mad at him.

Leo looked at Raph, "Don't do me any favors, Raph." he said.

Raph growled again and reluctantly threw his sais over by Leo.

"Good. Perhaps now we can talk." Karai said.

"Oh, you wanna talk? Because I had the thought that you wanted to kick our shells." Don said.

"If I had wanted to destroy you, you would not be alive to talk." Karai said.

"Okay, let's talk." Leo said. "But it's going to be difficult with your tanto at my head." Then Karai stepped off of him and let him up.

Leo got himself to his feet, and that was when Raph deemed it safe to try to kill the enemy. But Leo blocked him again.

"Raph, no! I gave her my word of honor." Leo said.

"Your honor! Bro, you are really gettin' under my shell!" Raph yelled at Leo.

"Come on, Raph. Let's hear what the pretty ninja lady has to say." Casey laid a hand on his shoulder. Raph growled, but relaxed just enough for Karai to continue.

"As I told you. My name is Karai." One of her men then gave her an emblem and she held it out to the turtles to see. It had the Foot Clan symbol on it. "And I am here to restore honor to the New York faction of the Foot."

She went on to explain that she hadn't expected to see the city torn apart and that she wanted their help to help stop the war going on between the Mob, Purple Dragons, and the Foot. But her goal was to get the city back under the Foot's control.

Raph hated listening to her at all. He didn't trust her. He really wanted to take her on again. He tried once again, but Don and Mikey stopped him this time.

"Look, lady. We don't know how we could help you. We're kind in over our heads as it is." Don explained.

"Yes, I know." She said. "But I need your help to stop this war. And all plans must have their contingencies. Make your decision."

The band of guys got in a circle to talk it over.

"What do you think, guys?" Leo asked.

"The Turtles team up with the Foot? It sounds crazy." Don shook his head.

"I don't know, Leo." Mikey said, unsure.

"There's no way I'm teaming up with Little Miss Foot." Raph said.

"Look, it may be a deal with the devil, but at least it's a devil we know." Leo said.

"There seems to be one result missing from this equation." Don said, then turned to Karai. "Excuse me, but what's in it for us?" He asked.

"Three things; One, You can save New York from being torn apart; Two, You can free the streets of the Purple Dragons and the Mob; and Three, The Foot and the Foot Elite are honor bound to slay the ones who defeated their master. They will destroy you, your master, and your comrades. They will be relentless. But if you help us, there will be no revenge for the Shredder's destruction." Karai explained.

Raph had heard enough. "There ain't no way I'm teaming up with her!"

"Raph, listen to me. We have to take this opportunity."

"Oh, is that the honorable thing to do?! You guys can be her fighters, but not me. I'm out of here. You comin,' Case?" Raph said.

Casey knew he had to stay. "You know what, Raph? I was always taught, that you fix your mistakes. I'm stayin.'" he stated.

Raph growled. "Whatever!" Then he leaped off the building. He just wanted to get as far enough away from Leo and the enemy as possible.

Casey and the three remaining turtles stayed there. Karai came over. "Well?" She asked, wanting their decision.

Leo put his hands together in doing an honorable alliance. "We accept your offer of alliance."

"But no funny stuff." Mikey added.

"We've never had much reason to trust the Foot before." Don said.

"The Foot has never had to ask for aid before." Karai said. "Now listen. We haven't much time…" She began her plan.

…..

After Randall had gotten done stocking the supplies in April's store, he went down to the lair to see if things had settled down or talk to Splinter about what was going on. The Foot had never went into April's store and was bored. He wanted to know what was going on.

Splinter was meditating when Randall came in. "Hi, Master Splinter. What's going on with your sons lately?"

"Hello, Randall. Leonardo has been feeling like the final fight with the Shredder was his fault and he feels responsible for what's happening in the gang wars above ground. He wants to put a stop to it, and I don't know how he would be able to handle it alone. I sent his brothers after him." Splinter explained.

"I know. Mike came in and got Casey. He said he was running from a fight with the Foot. Have you heard anything else?" Randall asked.

"No, I'm afraid not." Splinter said.

They hadn't been able to sleep because of worrying about the others. It was now morning. Then, there was a growling noise coming from the entrance. Raphael was just stepping into the lair. Splinter and Randall turned to see it was just him and none of the others.

"Raphael, where are your brothers?" Splinter asked.

"They all teamed up with a no good, lying lady that serves the Foot!" Raph said angrily. "Leo really gets under my shell!" Then he threw his sais into the target wall.

Randall had seen him mad before, but not this mad. "What did this lady want?"

"She wanted us to team up with her to stop the war. I don't trust her, that she'll get them into trouble." Raph replied.

"Yes, you have every right to be worried, Raphael. We don't know what she will do." Splinter said.

"So, what do we do?" Randall asked. "We can't just let this happen."

Raph went on to explain all that he had heard the best he could, but he was just so mad and he really needed to cool off first.

As time went on, Raph cooled off awhile and Splinter went on to talk to him that he couldn't just abandon his brothers and best friend in a time like this. They would wait for nightfall and catch up to them. They were sure going to need it, as there were a lot of enemies. Randall agreed to help too, and he knew how to do it.

….

Later that night, Karai was dressed in her father's armor and she lured all their enemies to the Foot building that was still destroyed from the last fight there with the Shredder. She met up with the turtles and Casey there before the enemies arrived.

"They are all on their way." Karai said, only she sounded like the Shredder himself.

"Good voice over work." Don complimented. "You even sound like the Shredder."

"The Shredder's voice gives me the creeps." Mikey said.

"I still don't understand how you could serve someone as evil and heartless as the Shredder." Leo said.

Karai was shocked to hear that, but she went on to explain. "You only knew the Shredder as a merciless enemy. But I knew another side to him." She explained how he had raised her to be the ninja she was today, and that she was an orphan and he had given her the life she had when she no longer had parents.

"We are all people of fate." She said. "It was my destiny to serve him, just as it was your destiny to destroy him."

"We had no choice, Karai. He had tried to kill us and harmed many innocent people for far too long." Leo said. "He nearly did us in. But I will say this, you are nothing like him."

"How so?"

"You understand honor." Leo said.

Karai smiled. "Thanks. Now hide yourselves. The show is about to begin."

The turtles and Casey all went away to their hiding spot and would wait and see if their aid was needed. If Karai could get the Foot Elite and Foot and Purple Dragons to stand down, then there would be no need for them to intervene. Then they would take care of the Mob. But if not, then the turtles and Casey would have to intervene.

In the end, the Foot Elite did not want to serve Karai when she revealed herself to them. They knew their original master was gone. A big fight broke out. That made the turtles and Casey jump in and assist Karai and her two men when they were on the losing side.

They all fought until they were all cornered in the middle of the circle.

A Dragon goon tried to fire a missile at them, but a shuriken struck it and it started to smoke. He threw it away and it exploded. There was a lot of smoke. Then, the ninjas started going down all of a sudden.

Karai, her men, Leo, Don, Mikey, and Casey all looked over to see what was happening. A shadow was now appearing from the smoke.

"Hi, guys. Miss me?" Raph said happily.

"Raph!" The others all cheered.

Then another fight began.

"I thought you were sitting this one out." Leo said.

"Well, I calmed down, thought about it, and realized I was being an idiot." Raph replied while knocked and kicking humans away.

"You did that all by yourself?" Mikey asked.

"Not exactly. I kind of had… a little help." Raph gave a thumbs up as a signal, and out of the smoke came in flying Master Splinter. Other ninjas also started falling from an unknown source.

The turtles knew it had to be Randall.

"We thought we would be too late!" Splinter said, as he hit an Elite ninja in the face with his walking stick.

"Nah! We had it all under control. Kinda." Don said.

"Turtles! Let's finish this!" Karai called out.

They all continued fighting until the ninjas were all but taken down.

The Mob continued to fall unexpectedly and were scared into taking off. Randall was taking care of them.

The turtles, Splinter, Karai and her men dealt with the ninjas. Many of them were soon down enough. Then, Karai cornered the lead Elite guard.

"Do you not recognize this seal?" Karai demanded. She held the seal of the Foot to him.

"Yes. It is the seal of the Foot. The Shredder's seal." The Elite said.

"You are honor bound to serve me, as I represent the Shredder." Karai ordered.

"We… will not." He said.

Then Karai did something to dishonor him. The others thought that she would have killed him, but didn't.

The hat on his head fell apart, cut in half. The other ninjas were in shock.

The lead Elite then ordered his men to surrender. They bowed to their new leader.

All the Mob was chased off the premises. The ninjas began dispersing.

Karai and her two men went over to talk to the turtles. Then, a purple lizard appeared out of nowhere and came over to what was happening.

"So, what's happening?" Randall stated. He eyed the woman warily and kept his distance.

Leo walked up to Karai.

"Thanks for your help. You all have great strength and courage. I hope that in the future that we will not be enemies." Karai said. "The vendetta is lifted. The Foot will not take revenge for what happened."

"I know that you understand honor, Karai. I know that you will keep your word." Leo said with a smile. He truly hoped she was different than her father.

"Fate is not the only master we must serve." Karai and her men moved toward an exit, bowed respectively and left through it.

That left the turtles, Splinter, Randall, and Casey alone there.

Leo stepped toward his father. "Master, I'm sorry. I just had to do something."

"It is alright, Leonardo. I understand. You had to follow your heart. You had to do what was right, even if others told you not to." Splinter understood.

"Thank you." Leo said.

They all headed home after that. This fight was finally over.

Randall had not wanted the enemies to see him, in fear of being blasted away, and only revealing himself when the fight was over. And even he had now met the Shredder's daughter.

Raph still didn't trust her, and he wanted to trust Leo's judgment.

Since the Utrom was truly dead, Karai did keep her word in the end. She remained an ally the turtles could rely on.

There were some Foot members that resented Karai as being the new leader, not liking that a woman was leading them, and they left her Foot clan. They would start up somewhere else. But there were still many who stayed her allies.

I know a lot of events are going to be retold from the series, but this is just my version of them, since Randall is in the story. So things got turned around some. This is AU after all.