The four ninja turtles, Donatello, Michealangelo, Leonardo, and Raphael are walking around on patrol. They look over the city, slowly rebuilding after the Krang attacked. They had to admit, the humans were doing a good job at it.

"New York... what a town!" Donnie said, wiping his forehead dramatically, as always.

Leo nodded, putting a hand on his hip. "It's developing a lot faster than I expected"

Mikey nods, along with Raphael who crosses his arms.

CLANK!!

They all perked up, locating the noise before looking down at an alleyway below them. Something must’ve broke..

“What was that?” Raph asked, grabbing his two sai’s, clearly prepared for anything, narrowing his eyes.

“Don’t know, let’s find out, Mad Dogs!” Leo said, jumping down already as Donnie sighed, but the others jumped down as well.

When they land, looking around in the dim alleyway, they find.. another mutant?! Fighting a Krang instead of what they expected, and infected human.