Ok this a. Story I was think about while I'm trying to finish part 1 of the Hiro Chronicles. This story is called Hiro/TMNT Abaddon strikes or just Worlds Collide.

synopsis: As Hiro and his friends defeat a mysterious enemy, the enemy gave them this omen: The Destroyer Will return.

As the Renkai tries to figure out this omen; a mysterious portal appears in Haven. Four Ninja turtles emerged and clash with the Renkai. However a hood man is causing chaos in Haven and New York City. But the turtles and the Renkai can't get along with each other

Can Hiro find a way to get them to work together to fight a common foe?

tmnt belongs to nickelodeon and mirage studios

Hiro chronicles Characters belong to me

character art of Hiro and his friends art by their respective artists