First, the Turtles embark on a secret mission, but a mysterious creature hunts them relentlessly, and they'll have to find a new way to come together to escape their foe--and the pain that haunts them. In the wake of TMNT: The Armageddon Game--Opening Moves, Oroku Saki, the Shredder, has revealed himself to the Turtles. In order to counter the newest evil machinations of the Pantheon's trickster god, the Rat King, he seeks an alliance with the sons of his former archenemy, the late Master Splinter. But are the Turtles prepared to join forces with their merciless executioner from a past life? Can Shredder truly be redeemed? No matter the case, the Armageddon Game is fast approaching, and the only place to find the answers to these burning questions is in...Northampton!