Kara was sitting on the couch, tuning her acoustic guitar, her arm now better, while the boys sat around doing their own thing. Strumming the strings to test their sound and once she was satisfied, giving a nod of approval, she began to play a song.

Donnie glanced up from his computer staring dreamily at her.

She glanced up while singing and saw him looking at her only for him to quickly go back to his computer screen as if he wasn't staring at her, this making her smile when Mikey came into view carrying the pitcher from the blender, stopping what she was doing and giving him her attention.

"Who wants to try my latest creation? We all love pizza. We all love milkshakes, so I combined them." Mikey smiled, pointing at himself proudly.

"Ok, that could not be less appetizing." Donnie said as Mikey revealed his creation.

"I call it..The P-shake."

Kara stared at it seeing it definitely looked like a blended pizza, scrunching her nose at it before shaking her head.

Donnie's cheeks puffed as he held back the urge to vomit before looking away. "I stand corrected."

"You guys have no sense of adventure." Mikey said as he took a drink of it. She stared at him seeing his face unchanged before it twisted in disgust, spitting it out in the pitcher. "Ugh!" Everyone went, including Mikey. "Where did I go wrong.." He asked himself clearly disappointed in his creation before drinking it all.

She covered her eyes, looking away in disgust. "Oh, come on Mikey! That's just nasty.." She uncovered her eyes looking at him before scooting closer to Donnie to see what he was up to.

While Leo watched his show, enjoying it as always, Raph walked up to him, arms crossed. "You have to be the only one who likes this show."

"No way. There are millions of Space Nick's out there." Leo said with a smile.

"There has to be in order to have this show air as often as it does." Kara pointed out while looking at Donnie's laptop before lifting her eyes from the screen just as Raph took the remote and changed it to the news. "Oh, thank you, Raph." She thought with a grin before looking over at the tv.

"I'm Jone Grody with news of a sewer shocker. City workers attacked by mutants?" The TV lady said making them all look at the TV in surprise just as the victim gives a description of the mutant.

"It was part human, part reptile, and all monster! It came out of nowhere and attacked me."

They all looked over at Raph who looked back at them. "Wasn't me."

She raised her brow at him with a grin. "I dunno, you are part human, part reptile, and all monster." She chuckled watching the steam rise from his head but crossed his arms continuing to watch the news.

"Let's take a look at this terrifying footage." Tv lady said as she rolled the film of the city worker.

"So, some people think the sewers are dark and scary-" He started but she sat up seeing something move in the background.
"Wait..." She started as he continued.
"-But actually, it's a lot of-" He stopped as they all saw an alligator like mutant rise up and attack the man.

"Are malicious mutants menacing Manhattan? Find out next on Grody to the Max."

"I got a bad feeling about this.." Donnie started.

She looked down at her phone to check the time wondering if she should head home now but knew the thing was in the sewers.

"The last thing we want is some mutant causing trouble in the sewers." Leo said, standing up as Raph joined in, "Or some news crew looking for him."
"We gotta track him down and stop him ourselves." Leo looked to Raph and nodded.

"Wait." Donnie said looking at the tv, "Let's rewind this. I think I saw a tunnel number." He continued as he rewound the tv, 'There, number 281."

"Let's go." Leo said as his brothers followed after him.

"I'll wait here.." Kara said as she watched them go before rewinding back to the mutant on the screen. "At least it's not a spider.."

While they were out she snuck out to get some food getting kinda tired of pizza she went for Tacos and got herself a large burrito; knowing the guys would be hungry as well she got them a pizza too. When she returned, though, she could hear yells and screams from inside the lair so she rushed to the entrance seeing the guys fighting the alligator from the news; the mutant having Donnie by his face. She squinted her eyes noticing his eyes were glazed over and had a feeling he was using instinct.

Before Leo could tase him he stopped as he began to hear a singing voice, echoing through the lair.

"Ask not the sun why she sets.

Why she shrouds her light away.

Or why she hides her glowing gaze.

When night turns to crimson gold to grey."

As she began to sing the beast stopped attacking and looked towards her direction, panting heavily, its eyes locked on her, growling angrily.

She stared back at it, her gaze unwavering, slowly making her way towards it.

The guys stared at her having heard her sing already yet this, this song was completely different, with how soft her voice was it's as if she was singing a lullaby.

"For silent falls the guilty sun.

As day to dark does turn.

One simple truth she dare not speak:

Her light can only blind and burn.."

The closer she got to the beast the lower its body went, its eyes no longer glazed over and no longer growling. It lowered Donnie to the floor but kept its grip on his face as she reached up to touch its face.

"No mercy for the guilty.

Bring down their lying sun.

Blood so silver black by night.

Upon their faces pale white.."

She touched its face, placing her forehead against its now fully surrendering to her voice and letting go of Donnie. He moved away from it but stayed by Kara's side to protect her. She whispered the rest of the lyrics to him as he fell to the ground panting heavily after his rampage. She bent down, having his head in her lap and stroked the top of it. "It's ok, you're with friends." She whispered to him, smiling softly seeing that he was asleep.

The guys looked at her with awe and a hint of crazy. "Woah..what was that?!" Mikey asked.

She blinked at them, confused. "What? Oh, that was a song my mother showed me when I was younger. She would have my dad sing it to me before bed."

"That was amazing-how did you do that?" Donnie asked.

She raised her brow at them seeing they clearly didn't know, "Seriously? You never heard the saying: "Music soothes the savage beast."

"What is all of this commotion?" Master Splinter asked coming into view.

"Sensei, Mikey made us bring a mutant back to the lair and it attacked us." Raph told, pointing at Mikey.

"It needs our help." Mikey said to Master Splinter.

"It's a dangerous monster!" Raph shouted at them.

"Raphael! There is no monster more dangerous than a lack of compassion." Master Splinter said.

She nodded and looked down at it while stroking his head some more, hearing it growl.

"My mistake." She blinked then looked up at him raising her brow before looking over at Mikey.

"We're doing to him what everyone does to us. Judging him by his looks."

"And the fact he had me by the face, Mikey!" Donnie yelled while holding his face. She laid the creature on its side as she stood up and kissed Donnie's head. "Aw, poor thing." She gave him a pout making him blush.

"But he was fighting the Kraang Master Splinter; It's like you always said: "The enemy of my enemy is my bro."" Mikey said as a matter-of-factly.

"That is not exactly what I said but what's this about the Kraang?"

While Leo explained to Master Splinter, she looked down noticing a large scar over his heart, "He's been hurt.." She says before looking over at Master Splinter, seeing the scar as well. "Hmm..his scars run deep but they protect a genuine heart. When he awakens Michelangelo you must find a way to befriend him."

"No problemo." Mikey said giving him a thumbs up.

"And Kara, I want you to stay with him to keep the beast calm." She nodded, smiling to him. "We need to learn what he knows about the Kraang. In the meantime, you three must find this power cell before the Kraang can."

"Wait, we're still chaining him up, right?" Donnie asked Master Splinter concerned for Kara.

"Of course. I am compassionate, not insane."

She shakes her head watching the guys chain him up and moves Donnie aside to make sure he's ok, running her hands over his head looking for any bruises or cuts.

"You sure you're gonna be ok?" He asks grabbing her hands and holding them.

"I'll be fine. Mikey and Master Splinter are here with me. Besides I have the taser incase things go wrong. Just focus on finding the power cell."

He looked over making sure his brothers weren't looking and gave her a quick kiss before running off to leave with them.

When the creature woke up Kara was playing her guitar til she noticed it moving and stopped, laying her arms over the instrument.

"Ngh..where am I?" He roars and struggles against the chains but she shh's him, smiling softly, "It's ok, we're not gonna hurt you. You're in my friend's home. They saw you-" She jumped back as he lunges at her the chains stopping him.

"Set me free!" He growled, struggling to break from the chains.

"Oh yeah, sorry about the chains." Mikey said, holding a large pot with a wooden spoon in it, "The guys had me lock you up or they said you would attack us.

"Who are you and what am I doing in here?" He asked in a deep, rumbling voice.

She stood beside Mikey and smiled. "I'm Kara."

"And I'm Michelangelo." He held out his hand to shake but he snapped his jaws making him take his hand back. "My brother's and I saved you from the Kraang."

Her eyes widened as his eyes glazed over after hearing that word and she grabbed her guitar as he roared, "Kraang!" going hostile again.

While he struggled to get free, she moved back, putting her arm in front of Mikey protectively and went to reach in her pocket for her taser til he eventually fell to his knees, panting heavily. She looked down at him sadly noticing his muscles were shaking. "He's losing energy and fast...must of been on the run for awhile now.."

"Woah, calm down! It's ok, you're safe. We brought you here so you could get better and nothing would heal you faster than my world-famous Pizza Noodle Soup." He said taking a spoonful of the stuff and holding it out for him to try.

He sniffed at it before drinking it all, snapping his jaws she could see a smile on his face while licking his lips. "This is the best thing I have ever tasted."

Kara and Mikey looked at him in surprise before he smiled happily. "Really? Alright, somebody finally likes my cooking!" He sat down while the beast sat up and began to feed him.

She sat down next to Mikey and played music while he ate.

"So, what's your name anyways?" Mikey asked, holding his duct tape bear.

"I do not have one.."

Kara looked at him sadly having his head in her lap again, stroking his head. He seemed to enjoy it which she didn't mind; she always wanted a pet.

"You don't have a name? Ha! Today's your lucky day cause I'm a genius when it comes to naming stuff." Mikey said proudly, crossing his arms.

The gator guy looked up at her and she shrugged. "Yeah, he has a knack for it."

She watched Mikey look and poke at the guy, hugging his head after he opened his mouth to look inside it. "Come on, Mikey.." She said getting a little irritated for doing that to him.

"Hmm..your head is kinda leathery..how about Headleather?..Heather?...No wait! Leatherhead, even better! Leatherhead!" She let go as he sat up and smiled.

"Leatherhead it is. Thank you."

"No problemo, it's what I do." Mikey grinned.

"If I may interrupt." Kara started, moving from him and sitting beside Mikey. "Why did you attack my friends?"

"Kara, I'm the one who named him so I'm the one who asks the questions...why did you go all crazy on my brother, Donnie?"

She crossed her arms at him but sighed listening to Leatherhead.

"Your brother?" Leatherhead asked with concern on his face.

"Yeah, instead of shaking his hand you shook his head and his entire body."

Leatherhead looked away, ashamed as he remembers everything in red. "There are times when I lose control. When I am awakened, I am horrified by what I have done..a monster like me deserves to be chained.."

She looked down at them and put her hand over his. "You are not a monster.."

"Yeah, maybe you think you're a monster because people treat you that way. When you heard Kara sing you calmed down!" Mikey said holding his arms out wide with a smile.

Leatherhead looked down at Kara and smiled at her. "Your voice..it was nothing like I have ever heard. It was beautiful."

She blushed and scratched her cheek some, "Oh, stop, you. It's like the saying goes:" She stopped but notice he was waiting for her to continue. "...Music soothes the savage beast. Come on, you too?!" She groaned but he leaned forward, nudging her with his snout making her smile, hugging him.

"You two are wise beyond your years."

"Yeah, I get that a lot." Mikey said which made her chuckle.

She was helping Leatherhead with his food when she heard the guys come back.

Mikey greeted them saying, "Hey dudes. Leatherhead is off the chain."

They freaked out, Raph holding his sais out. "You mean you set him free?!"

"What? No. Off the chain means he's cool." Mikey started making the relax and sigh in relief. "And that's why I set him free." Mikey finished looking over as Leatherhead comes into view with Kara by his side holding the pot of Pizza Noodle Soup.

He gave them a weak smile as their eyes bug out.

"You let that maniac loose?!" Donnie asked clearly terrified. "Maybe you forgot he grabbed me by the face so let I'll remind you; He grabbed me...BY THE FACE!" He said pointing at his face while the ends of his mask stand up making them look like rabbit ears. "Hehe, cute.."

"Relax, you've been hurt worse since." Raph said with a smile.

Kara walks over to them and sighs. "Look guys, he's changed. We got to talk with him and well..he's misunderstood."

"What if he goes beserk again?"

"Relax, he's totally mellow." Mikey said patting his snout while Kara hugs it, smiling. Donnie's eye twitches seeing her hug him, feeling jealous.

Leo walks up to him. "Soo..heh..Leatherhead..about the Kraang?"

Both Kara and Mikey's eyes blinked wide as Leatherhead drops the pot, his eyes glazing over again, roaring, "Kraaang!" He takes a swipe at both Leo and Raph, Kara hugging him by his snout with Mikey on the other side stroking his head. Leatherhead falls to his knees, his eyes returning to normal.

"Dude, chill, chill!"

Leatherhead panted heavily staring at Kara as she began to whisper into his ear while Mikey argued with Leo, she said next to him stroking his head. "It's ok Leatherhead.."

"So um..leatherhead..how was your day?" Leo asked stepping in front of him.

"It started out awful.." Leatherhead began.

"Yeah, you were attacked by the Kraang." Mikey said making Kara glare at him. "Mikey!"

Leatherhead roared, baring his fangs. Kara ran up to him, holding him by his waist while Mikey started rubbing his feet than his back. "Cleansing breaths! Cleansing breaths.." He said as Leatherhead fell to his knees again, Kara between his arm and side while Mikey massaged his back.

"You know you're in a safe place now, right?" Mikey said to Leatherhead who nodded.

"Yes.."

"My brother's just want to ask you a few questions. Do you think you can handle that?"

"..Yes."

"Ok, what is it you guys wanted to ask?" Mikey asked looked at his brothers.

Leo and Raph look at each other before turning their attention to Donnie.

He looks at them giving them an "Aw, man" look before walking up to him, taking something out of his bag. "Um..we just want to know..what this is.." He held up a glowing canister with what looked to be a crystal in the middle.

"That must be the power cell.." She thought but gasped as Leatherhead went hostile again, shoving her out of the way and grabbing Donnie's head again.

"Thief!"

"Aw, come on! This is not my day!" Donnie muffled through his hand staring at Leatherhead, scared.

"Leatherhead, calm down!" Kara shouted but before she could reason with him, he used his tail as a whip and threw her into the wall, knocking her out.

"Kara!" Everyone shouted, Donnie struggling to get out of his grip and see if she was ok but as his brothers attacked Leatherhead he threw him at Raph making him push him off.

While they tried to stop him from death rolling Raph Kara slowly woke up, holding her head in pain. She watched him with a sad expression as he attacked Mikey. "Leatherhead.." She slowly got up and looked over hearing Master Splinter shout, "Step away from my sons!" with force causing Leatherhead to attack him. Master Splinter was able to hold his own and tossed him towards the exit. "Leave this place. Out!" He said, glaring at Leatherhead making him take the power cell and leave.

She groaned in pain holding her side and followed after him while Splinter went to tend to his sons not knowing Mikey followed behind her.

"Boys, are you alright?"

"Ugh..yeah..yeah we're ok." Leo groaned while sitting up.

"Where is Michelangelo and Kara?" Master Splinter asked looking around.

"You don't think they went after Leatherhead, do you?" Donnie asked standing up and looked over where she was last.

"No." Leo said with a soft chuckle. "Only an idiot.." He blinked before looking at the exit with his brothers. "Oh boy.."

"HE maybe the idiot-" Raph said looking at his brothers.

"But what about Kara?" Donnie pushed them out of the way his mind racing at what could happen to Kara running in the direction he thinks they would of gone.

Mikey could hear Kara singing and ran faster, following Leatherhead's footprints while shouting his name. He reached the end of the train tracks seeing train cars blocking every entrance and exit.

Kara was standing behind Leatherhead, singing to him with her hand on his back when Mikey entered.

Panting heavily Leatherhead lowered his head in shame. "I..am sorry, Kara.."

Kara looked over at Mikey seeing him opening the doors and walk in looking pretty ticked. "Dude! Leatherhead, What's the big idea man?!"

"You two..should not be here.." Leatherhead said keeping his head low.

"I trusted you.." Mikey said sounding hurt. "Then you freak out and attack my entire family! Even Kara! I thought we were friends"

Kara smiled at Mikey before looking back at Leatherhead who turned to face them.

"I warned you there is a dangerous force inside me that I cannot control..and that is why I must be alone." Mikey looked at him confused before turning around seeing his brothers enter.

"Leatherhead, get away from Mikey and Kara before we turn you into the world's ugliest suitcase!" Raph warned before Kara stood in front of Leatherhead protectively ticking Donnie off some.

"Please! I mean them no harm! It was the Kraang that made me this way.." He looked down as he began to tell his story.

Kara moved closer to Leatherhead and held his hand as he told it knowing it must have been painful what they did to him.

"Six months ago, I escaped through the portal that they used to travel to earth, and I stole this.." He said holding out the power cell.

"What do they use it for?" Donnie asked looking at it.

"It powers the portal. Without it, no Kraang can enter or leave this dimension. I swore to keep it from them and spare this world from their evil. Even at the cost of my own life."

Kara looked up at Leatherhead not knowing how heavy the burden of keeping the power cell from the Kraang was and smiled softly at him for doing such a brave act on his own. She blinked, hearing something rev up and gasped as the train car shook.

Leatherhead held the power cell protectively while Donnie held Kara close to him to keep her from falling.

"Give to Kraang the power cell that Kraang has come to demand that you give to Kraang."

"It's the Kraang!" Mikey shouted.

"Quick! Barricade the doors!" Leo shouted as he and his brothers closed the doors.

Kara backed up to Leatherhead as one of the droids came in and rushed at them. She punched him across the face, knocking him back while Leo sliced its arms off, she whimpered in pain, flexing her fingers. "Ouch..knew that was a bad idea.."

After they managed to close the doors, everyone looked around keeping their guard up. As soon as Mikey sighed a chainsaw blade came through the door and started slicing the door off while the dismembered hand of the Kraang came to life and grabbed Donnie's face.

She went over to him and grabbed the arm, pulling it off of him. "Why does everything wanna grab you in the face?!" She shouted eventually pulling it off.

"I dunno!" Donnie screamed.

She looked over hearing Mikey scream at the droid head before throwing it away.

"We're surrounded!" Raph said fighting off their hands.

"We'll never hold them off." Mikey joined in putting his weight against the door.

"We gotta get out of here! Donnie! Can you get this subway car running?" Leo asked, his katanas out and ready.

"This track is dead there is no electricity."

"What about the power cell? Can you use that?" Leo glanced at the power cell in Leatherhead's hands then back at Donnie.

"I might be able to hook it up to the motor, but I'll need time."

"Then I shall give you time." Leatherhead said standing up and walked over to Kara and Mikey. "My friends, you have trusted me so now I am trusting you." He said giving the power cell to Mikey. "I will deal with the Kraang." Before he could leave Kara gave him one last hug and he smiled down at her, patting her head. "I shall miss you both." He said before Kara let go.

She nodded and watched him open the door and go all out on the Kraang.

"Donnie! We're running out of time!" Leo said keeping the door closed so the Kraang wouldn't come in.

"I'm working as fast as I can!" Donnie yelled clearly under pressure.

She kneeled beside him with her hand on his shoulder and gave him a smile. "You can do this."

"Donnie.." Raph started but was pushed back by the Kraang so he shut the door on them. "Would you hurry it-"

"-I got it!" Donnie yelled slamming the power cell into the engine as they sped off so fast everything was a blur around them, everyone screaming at the speeds they were going til eventually Donnie hit the brakes and they arrived on the surface.

They all walk out Kara seeing a chemical plant up ahead.

"Woah, where are we?" Leo asked as he and his brothers climbed out.

"By my calculations," Donnie started, sniffing. "I'd say the sewage plant."

"Wow, it's as beautiful as they say.." Mikey said in awe.

Donnie was taking care of Kara's hand still upset at all the attention she was giving Leatherhead. "Luckily you didn't fracture anything." He said not looking into her eyes.

She stared at him knowing something was wrong..and it was probably her fault.

When he was done wrapping her hand for safe measures she reached up and pulled him close to her causing him to blush in surprise. "I'm sorry..please don't be mad at me." She squeezed him gently and he looked down at her and sighed softly before lifting her head.

"I'm not mad...just a little jealous of all the attention you were giving Leatherhead..guess I was being childish."

She giggled at him before leaning up and kissing up. "You're so adorkable.." She thought as she kissed him. "But don't ever change."