Teenage Mutant Ninja Turtles (2011), Volume 20

In the wake of total destruction, the exhausted Turtles must prevent catastrophe, as disparate forces converge on New York and a sinister power-play takes shape. Following the Triceratop Invasion, New York is in ruins. Various groups jockey for control in the power vacuum, each with their own agendas and goals. But there is one who doesn't care about power or victory, only chaos... the Rat King! Will the TMNT be able to stop him from doing the unspeakable? Collects issues #81–85 of the ongoing series.