(This time TMNT07 and TMNT12 are added in this lineup.) All the Mikey's of each dimension is Kidnapped and the Donatello's have a plan to meet with the other Dimensions again.. But with newcomers. And the enemy this time is so much different than the others they had gone up against...

Sequel to 'What Heart?' Struggling with the aftermath of Krang's murder at the hands of Lord Dregg, Shredder and his band of misfit mutants, are out for blood. Filled with the new and devastating emotion of mourning, he is forced to to do the one thing he swore he would never, ask the Turtles for help.

Shredder returns home to the Technodrome to discover that while he, Bebop and Rocksteady were away Lord Dregg had broken in and committed something purely evil. (Tmnt 1987 Shredder one shot)