Donatello, Raphael and others in “Unfinished Business”

This waiting is getting on my nerves.

Don't worry. It'll be over soon.

And he'll be here any minute. And then we do what we do best!

Yeah.

Pizza! Ta da!

Mm. Good stuff, Michelangelo.

[Splinter arrives] Uh, master Splinter. I know you don't dig pizza. [He holds a sushi tray] So I got you a sushi tray.

It is thoughtful of you, Michelangelo, but I'm afraid I'm not hungry.

[to Michelangelo] He didn't want it.

I don't blame him. Raw fish! Yech!

Splinter's been acting mondo depressed lately. What do you suppose is bringing him down?

He's probably worried about Shredder's next move.

I don't think that's it. I think master Splinter misses being human.

Oh, I think you got it, bro. Like, wouldn't it be rad if we could grant him his wish?

Yeah, but a chemical that can change a rat into a human ain't easy to come by, even in this city.

Hold it, guys. I think I've got just the thing. Follow me.