Having lain in wait for over a decade, underworld forces are making their moves to reclaim New York City. As the fighting gets more desperate, Casey Marie Jones and the new generation of Teenage Mutant Ninja Turtles struggle to save rebel bases under attack, but they're outnumbered and lacking both intel and allies. With the tide of the battle rapidly turning against them, Casey Marie must make hard calls about who she can trust and how to keep her family and city safe. The legacy continues as legendary TMNT co-creator Kevin Eastman reassembles the acclaimed creative team for the epic next chapter of The Last Ronin!