It's all been leading up to this! A massive showdown on the streets of the Big Apple! As New York gets torn apart by different factions, mutant and human alike, Karai returns and the future of the TMNT—in fact all of NYC—comes down to a final negotiation between Splinter and Karai. It's the shocking culmination of nearly a decade of storytelling as our heroes face their darkest hour against a multitude of enemies bent on their total destruction. Find out how a City at War will change the world forever! Plus, abandon all hope... as the most infamous villain in the Turtles' universe, Shredder, returns! Collects Teenage Mutant Ninja Turtles #90–100 as well as the 2019 Free Comic Book Day issue, Macro-Series: Raphael, and the Shredder In Hell mini-series.