The return of the Turtles to New York did not happen as they would have hoped. Worse still, Shredder and Krang finally meet, but will they be able to set aside their differences in order to ally themselves? Meanwhile, Old Hob continues his plan for the creation of Mutants, with a goal that is still unclear. Our four brothers will then have to wonder if they can really trust him, and whether his help with the Clan Foot is truly disinterested.