The first thing wanna say it that in the theme song, at the part where they say "Master Splinter taught them single skill they need." While April is on the tire swing reading a comic then looks at Master Splinter, Vixen is sitting at the edge on the pool with her legs dangling off the edge, then she looks to master splinter. That's how the theme song in gonna be. Okay, read on :).

Master Splinter was standing in the dojo, with his back to the turtles. A few feet away the turtles took a knee and discussed the plan.

Leo: Okay, here's the plan. Donnie, you're gonna strike first.
Donnie: No, wait. You want me to come at Splinter? I'll get pummeled.
Raph: Well, getting pummeled is your specialty.
Leo: Trust me. It's all part of my plan to catch Splinter off-guard.
Mikey: Uh, Leo, don't take this the wrong way. But against Splinter, your plans always get our butts whipped.
Leo: Okay, new thought. Mikey, you attack.
Mikey: *Turns to Donnie* He took it the wrong way.
Raph: Enough talk. Let's do this.

Leo nods and they all turn to there rat master. The boys start to walk over to Splinter. Leo and Raph to the right, Donnie and Mikey to the left. Even with his eyes closed, Splinter still knew they were coming. Because of his great hearing. He turned and prepared for battle. Mikey ran at his father and jumped into a drop kick. Time seemed to slow down. Splinter opened his eyes, as he felt air rushing towards him after hearing rapid, soft foot steps coming from the behind. Splinter grabbed Mikey's leg and threw him onto the floor. Mikey yelped as he was kicked away. All the while, Raph was sailing mid-air, ready with a punch, Donnie and Leo were running to Splinter. Splinter moved out the way, just in time to avoid Raph's fist hitting him in the head. Then dodged his charging attack at the same time as Donnie's Mid-air kick. Then dodged Leo's side kick.

Splinter grabbed Donnie's leg and Raph's arms. He swiftly let go of Raph arm and spun to knock Donnie off his other leg. As Donnie circled in mid-air from the move, Splinter kicked him into Raph. They both went flying. He turned to hit Leo in the face, but the eldest turtles ducked under it. Seeing an opening, Leo quickly let a punch fly and hit Master Splinter right in the cheek. Only then did Leo understand what he did and instantly felt afraid and guilty. Leo pulled back his hand, and Splinter seemed frozen.

Leo: Uh! Sensei, I'm sorry.

Sensei turned with what seemed like an angry look on his face. Leo tried to explain, but was flipped over. Splinter held up his fist. Donnie, Raph and Mikey stared at the scene.

Donnie: Oh man. Leo's a goner
Mikey: Oh, nodie dodie.

Splinter relaxed.

MS: Well done, Leonardo. But just when you had the advantage, you hesitated, and that made you vulnerable.
Leo: Hai, Sensei.
MS: Now, that is all for today. Unless you care for a rematch.
Donnie: No thanks.
Mikey: I'm good.
Raph: Yeah, I think we're all set here.

Master Splinter went into his room. As soon as he left the other crowded around him.

Mikey: Leo!
Raph: Not bad.
Donnie: Dude, I can believe you actually tagged Sensei. That was epic.
Mikey: *Takes Leo's hand* That hand that punched Splinter. You know you can never wash this again.
Leo: I gotta say guys, it was all teamwork. We are definitely getting better.
Donnie: You think we might be catching up to Splinter?
Mikey: Yeah, maybe soon, we wont need him to train us at all.

But, unknown to the turtles, Master Splinter heard their entire conversation. The turtles walked out of the dojo laughing.

Vixen: Hey guys.

Vixen yelled out as she hopped the turnstiles. Mikey ran up to her and gave her a hug.

Vixen: Woah there. My stomach still hurts from when your shell slammed into it. What's going on?
Mikey: You will not believe what happened. Leo actually got a hit on Splinter during training.
Vixen: No way. *Fist bumps Leo*
Mikey: *gasps* You touched the hand that punched Sensei.
Vixen: Mikey, you are too much.
Donnie: This just shows that we're getting better.
Raph: Yeah, soon we wont need Master Splinter to train us anymore.
Vixen: *smile drops* Well, that kind of mean.
Leo: What do you mean.
Vixen: I mean, yeah you guys are getting better and that's great. But I don't think you should be counting down the days when you don't need Sensei anymore. I think you should cherish the time you have now.
Mikey: Why?
Vixen: Well, you guys are originally turtles, which means most likely, your gonna live to be like 150 or something. While Splinter was originally human, and our life span is actually 79 years old. Plus, I mean, he teaches you little by little. So maybe Leo got a hit on him and he wasn't really trying his best. He got Leatherhead in one move when you couldn't beat him. And that was yesterday. Plus, it's just hurtful to say that you're excited that you don't need someone anymore.
Leo: ..Wow.
Raph: You always know how to make us feel bad.
Vixen: But I also help you with your problem. I'm like the glue that keeps things together. Now tell me the story of how Leo got Sensei.

~Time skip~

In the lair, Master Splinter was training, trying to forget what his sons had said. But he just couldn't seem to shake it. Soon, would they not need him anymore? Then he heard a voice in his head, clear as day. "Join me. Join me." I said. Master Splinter's eyes went red for a second. But he snapped out of his small trance and yelled. He fell to the ground, on his knees. Even though everyone was in different rooms they could still hear the scream. Donnie, who was working on his patrol buggy turned off his blow torch. He ran out the room to see the rest running to the dojo, Vixen being the fastest. When Donnie came in, The 4 were crowded around their Master.

Donnie: Sensei, are you okay?
MS: I am fine.
Vixen: Not to be rude, but no one just screams out if they were alright.
Leo: Are you sure you're alright? You don't seem-

Leo was interrupted by bird songs and harp music.

Donnie: Hey, that's April's ringtone!

Mikey and Raph started to make kissy noises. Vixen stood up and slapped them both on the back of their heads.

Vixen: SHUT UP! One day, you will know. Donnie,answer it.
Donnie: Hey April! I mean- hey April~. I mean-
April: Donnie, stop talking. I need some help. I'm having a little bit of a pest problem.

April looked down to see the millions of rats she got away from. By climbing a telephone pole.

Donnie: Don't worry April. We're coming.
************************************************************************************************************Even thought it was daytime the turtles still went topside. As they hopped from rooftop to rooftop the people below ran away from the many, many, many rats. Vixen would have taken her bike, but there is no way, in the name of chocolate, that she is going down there.

Mikey: Oh, wow. The city is so beautiful in the daytime. Except for the, you know, billions of rats.
Donnie: Actually, the entire rat population of New York is only about 36 million, which-
Raph: I will smack you out of your shell.
Leo: Uh, guys, we may have a problem.

The 5 stopped to see to many rats swarming around the telephone pole that April was gripping on for dear life.

Mikey: Oh rats. Ha. Get it?
Raph: For the 14'th time, yes!
Vixen: I'm so proud of you, Raph. It's been 10 minutes, and you haven't smacked anyone. Which crushed you're old record of 2.
Donnie: We're coming, April. Don't go anywhere!
April: Where could I possibly go?
Vixen: Down.

Raph and Leo swung some grapping hooks and threw them at the wooden pole. Raph swung and landed on the pole, knocking off rats that were climbing up. Leo did the same.

Vixen: Wait! You have grapping hooks? How come I don't have one?

Mikey grabbed Vixen by the waist and threw his grapping hook, Then he swung with her. She ended up sitting on his knee as he stood on the pole. Donnie swinging in pursuit.

Vixen: I don't like this in the slightest.

Vixen started crawling up the rope and the other did too. Raph noticed that the rats were still climbing up the pole.

Raph: These stupid rats are starting to get on my nerves.
Donnie: Rat's aren't stupid. Despite their small brain size, they're remarkably-ow!

A rat fell on Donnie's face.

Raph: I warned ya.
Leo: Raph, put down the rat and keep climbing.
April: Hurry!

The girl and turtles kept climbing, but unknown to them, the rats were chewing on the base. The telephone pole started to tilt to the side and April was starting to loose her grip. The only thing keeping the pole up was the telephone lines. Then April let go. Donnie gasped and pushed off. He swung and caught April. Then landed on the pole again.

Vixen: Whoo! Donnie, great catch!
Donnie: As long as Donnie's here, you have nothing to-Oh boy.

The rats have finished chewing the wood and know they were all falling. The pole suddenly stopped cause of the wires. The 6 were just hanging there.

April: I appreciate you guys coming to help, but how is this better than getting eaten by rats?
Vixen: Listen to yourself. You're NOT being eaten by rats.
Mikey: And atleast it'll be quick. With rats they chew and chew and chew and chew....and chew-
April: Okay we get it.
Vixen: Are we just gonna ignore the fact that we have a clear shot at surviving?

Vixen was walking across the beam

Donnie: Let's move.

They started walking across the beam. The second to last wire snapped. They all turned and gasped.

Vixen: Stop being stupid horror movie people, AND RUN!
Leo: Hurry!

They all ran across the beam and it snapped. They were still on it, so the beam fell. Because there was so much weight on the other side they were launched onto the next roof. They all fell into a pile and the screeching of rats followed. They looked over the edge.

Leo: Chew on that, rat finks!

He looked behind his to see everyone staring at him.

Leo: Oh come on. That sounded cool.
Vixen: He's not wrong.
April: Does anyone know what the heck is going on?
Donnie: I'm not sure. But whatever it is, this attack is extremely well coordinated. Obviously, there is a higher intelligence at work here.
Raph: Well, that rules out Mikey. Ow!
Vixen: What did I say about making fun of Mikey for no reason?
Donnie: I'm serious. Someone or something is controling every rat in the city.
Raph: Wait a sec. Every rat?
Leo: That means that Splinter could be-
Vixen: Oh rats.
************************************Master Spliter was in the lair, sleeping. But the voice would not leave him in peace.
???: Why fight it? You know in your heart you belong with the Rat King.
MS: Leave me. I am not one of your rats to control.
???: You're right. You are so much more. We are so much more. And together we will be unstoppable.
MS: No. You and I are nothing alike.
???: We've both lost all we hold dear. We both became outcasts from society. And we both come to see the world through the eyes of rats.
MS: No. I am a man. I am Hamato Yoshi!
???: Not anymore.