At night The turtles and Lizzie were on the roof of the a building while it was raining

Lizzie: *Yawn* couldn't this wait until morning?

She sneezed

Lizzie: And not in the rain?

Mikey: No! You have to believe me! Piebald's back! She's after us because we flushed her!

Raph: Relax! I'm not a scientist but this is one hundred percent just your guilt glands secreting guilt into your central guilt system

Donnie: Raph is right. He is not a scientist but separately he was also right that this Piebald jazz is in your head

Mikey: No it's not. We have to tell Dad the truth!

Lizzie: based on what you told me that might be best

Leo: no it's not! We're not telling dad anything! Look we all miss her but a year ago we stood on this roof and decided-

Mikey: You decided!

Leo: WE decided to replace Piebald with an identical fish dad's heart wouldn't be broken. He wins we win and Piebald wins

Mikey: Piebald got flushed!!

Donnie: Uh If I may Leo's idea about the whole not getting into trouble thing very convincing.

Raph: I second that!

Leo: thank you! What do you think Liz?

Lizzie: well I guess what Splinter doesn't know can't hurt him

Mikey: What?!

Leo: See? Even you get it! Looks like everyone agrees with me that we renew our path of secrecy and never tell dad the truth. One two three let's go

They all put their hands together

Raph: yep eternal silence. Back to the lair!

Lizzie: finally

She sneezed again

________________________________________

Back at the lair mikey thought he saw Piebald and ran up the others

Mikey: AHH!!

Leo: what?! Use your words!

Mikey: it's Piebald! She's after me!

Leo: Forget the name! Does the pact of secrecy mean nothing to you? I say we lock Mikey up till morning

Lizzie: Huh?

Donnie: Yes

Raph: Yeah

???: genius idea Leo

Leo turned around

Leo: fantastic the wall agree's

Lizzie: Wait what?

Piebald became visible

Piebald: hey guys it's me Piebald! Remember? But now your new friend is my mortal enemy!

Raph Donnie and Mikey: AHHH!

Lizzie: ok that's just a stereotype. Even though you're not wrong...

Leo: Also she's a mutant now

________________________________________

The five of them hid in the kitchen

Donnie: I don't know what's more unsettling the giant goldfish or the possibility that Mikey may be right!

Leo: And did you see her camouflage power? Classic!

Mikey: She's after us because we flushed her and covered it up and now we're friends with a cat! Guys we have to tell dad the truth!

Leo: No way! The responsible thing is to get rid of her before dad finds out and then go back to pretending this never happened!

Lizzie: Leo a mutant fish is hunting us! What's important stopping her or keeping the secret?

Leo: we can do both!

Raph: solid solution!

Suddenly Splitner put a fish bowl on the table

Splinter: Hello fish food!

The turtles and Lizzie screamed but calmed down when they realized it was just Splitner

Splinter: Just grabbing a late night snack for my sweet precious Piebald

She put wish food in the bowl but there was only a rock with googly eyes inside

Lizzie: Wha?

Splinter: Say why do you look like you have something to confess?

Mikey started panicking even more

Leo: don't rat us out to the rat!

Mikey: Dad the truth is... We... I uh...

Leo held a frying pan

Leo: Snitches get stitches

Lizzie took the frying pan out of his hands

Mikey: ...Dad I-I... I tooted...

Splinter: well then... Back to beddy bye Piebald!

Splitner left and went back to bed

Leo: Phew. Way to throw dad off the scent bro!

Lizzie: What's the plan Raph?

Raph: first we have to suit up!

They all used pots and pans as helmets and weapons

Raph: She could be behind us or in front of us. The only thing we know for sure is she's not right here!

Raph just disappeared without anyone noticing

Donnie: Agreed and Mikey you did the right thing not telling dad. In the end a lifetime of guilt and regret will be its own reward

Then Donnie was captured to unknowingly

Leo: well said Donnie!

Lizzie: that's not reward at all!

Piebald landed behind them

Piebald: you're not off the hook yet!

Lizzie: Haha! I get since your a...

Leo Mikey and Lizzie turned around to see her

All: AHH!!!

________________________________________

The three of them ran inside the turtle tank and locked the doors

Mikey: We have to go back for our brothers. Or are you gonna replace them too?

Lizzie: Leo would never-

Both Mikey and Lizzie saw Leo glueing eyes to rocks

Lizzie: seriously?!

Mikey: when will the lies end?!

Leo: i don't lie! I just change the truth!

Lizzie: that's pretty much what lying is! I don't want to lose another life to a fish!

Leo: Come on Liz! We defeated the shredder!

Lizzie: after I lost a life!

Leo: that was technically Draxum!

Lizzie: I don't want to argue about this!

Someone walked closer to the door

Leo: W-Who's there? Donnie? Santa?

It was just Frankenfoot and he wasn't scared

Frankenfoot: Buddies!

Mikey: wait Frankenfoot? Frankenfoot quick! Get inside. There's a mutant goldfish!

Mikey opened the door but Frankenfoot was immediately captured by Piebald

All: AHH!!!

Leo: Out the floor hatch! Fast!

Leo Mikey and Lizzie made it out of the turtle tank and heard Frankenfoot being ripped apart

Piebald: gotcha confetti boy!

Lizzie: No!

Leo: we'll fix him later! We have to get out of here!

At that moment Piebald grabbed Mikey

Mikey: LEO! LIZZIE!

Piebald disappeared with Mikey

Leo and Lizzie: MIKEY!

Leo: Ok let's keep our wits and do what any mature and brave individuals would...

Lizzie: what's that?

________________________________________

Leo burst into Splinter's while holding Lizzie's hand

Leo: DADDY!

Splitner was already captured by Piebald

Lizzie: Splinter!

Piebald: The flushing is nigh!

Leo: Huh?

Lizzie: I think that means 'soon'

Piebald: you should listen to her and maybe read a book once in a while!

Piebald disappeared with splinter

Leo: Oh boy...

Lizzie: I'm starting to get tired of that!

Leo: no time to think this though My family needs me! Liz this is what we're going to do step one light taunting step two I have no idea!

Lizzie: Leo I love you but we need a better plan then that

Leo: just follow my lead!

Lizzie: that hasn't worked out so far and none of this would've happened if you just told the truth! And I went along with it because I trusted you

Leo: I know! I know! And I'll change I promise!

Lizzie: I'm not asking you to change. Just try to listen better ok?

Leo: Y-Yeah I can do that

Lizzie kissed him on the cheek

Lizzie: Good. Now let's save the others!

Leo smiled and nodded

________________________________________

Leo and Lizzie traveled deeper into the sewers and eventually found Splitner Raph Donnie and Mikey hanging over a whirlpool trapped in a net

Piebald: Once I find the bluefin and the catfish it's flushing time! You know what a scream sounds like underwater? Well you're about to find out!

Leo: Oh boy Liz you were right I should've thought this through!

Lizzie: that's not what I...

She realized Leo still didn't listen to her

Lizzie: you know what never mind

Leo: Come on we have to think!

He facepalmed and mud got on his face

Leo: You thinking what I'm thinking?

Lizzie: most of the time

Leo: I'll take it!

He covered himself and Lizzie in mud

Leo: Piebald may have camouflage but we have pajama-flage!

Lizzie: Haha! I still love your jokes

Leo: I know!

Piebald was ready to cut the rope

Donnie: What did we ever do to deserve this- Oh right right. The flushing...

Piebald: You dummies flushed me alive and replaced me with an imposter so my own loving father didn't know I was missing! Not to mention being friends with a cat! A CAT! Who does that?! I was lost and alone and some trash wizard tried to eat me. But my flavor was too robust and I escaped. So I was forced to embrace the sewer circle of life and eat things I'm not proud of... Now you losers can feel what it's like to be mutants who live in the sewers!

Leo and Lizzie were hanging on the ceiling

Leo: that's already our thing!

Lizzie: surprised to see us?

Leo and Lizzie both tried to kick Piebald but she disappeared and they fell on the floor. Then Piebald reappeared

Piebald: Now that the whole family's here It's time for my flushing revenge!

Leo: We never meant to flush you. It was an accident honest!

Lizzie: to be fair I wasn't even there! I swear!

Leo: How about we make it up to you with a nice dinner of our own? Sushi- I mean fish and chips- Uh branzino- Why can't I stop suggesting fish?!

Piebald attacked Leo but Lizzie grabbed her hook

Lizzie: Leave my boyfriend alone!

Piebald: you protect him after he flushed me?!

Lizzie: Leo made a mistake but so does everyone! And even when he messes up he keeps going and never stops laughing! And love him for that

Leo: Awww!!

Lizzie kicked Piebald into the wall

Lizzie: Your turn Leo!

Leo: Oh right!

He looked at Splinter

Leo: Sorry dad. It was me who made everyone keep the secret from you!

Piebald stood back up and was ready to fight

Leo: At least flush me and let my family go!

Piebald: Let your family go? I love that idea!

She cut the rope and Splinter Raph Donnie and Mikey all started falling

Lizzie: NO!

Leo: I LOVE YOU GUYS!

Suddenly Piebald grabbed the rope and pulled them back up. The net also fell on the floor

Leo: Yeah!

Lizzie: Your Ok!

Leo and Lizzie hugged Raph Donnie and Mikey while Splinter laughed

Splinter: Hahaha! And that is why you always tell the truth!

Piebald: haha! Got ya! You should see your faces!

Mikey: Huh?

Donnie: How?

Lizzie: what the what?

Raph: Wait what?

Leo: Huh?

Piebald: After a year, I made my way home only to find a googly eyed rock living in my fishbowl

She held Splinters fishbowl with the rock inside

Piebald: Poor form guys

Splinter: I was shocked to discover the five of you lied to me. So we planned this whole thing to teach you a lesson

Mikey: I... don't know... how to feel now...

Lizzie: I'm so confused...

Splinter: you know I love you but you only remember lessons when you learn them the hard way. So remember lying is bad and dad is good! Night

Splinter walked away with Frankenfoot on his back

Piebald: Later guys! Also Lizzie you're really cool!

Piebald followed splinter

Lizzie: Uh... Thanks?