Bayou man, Jess Harley, turned into the creature Leatherhead by Mary Bones, much to his dismay. Shredder, Bebop, and Rocksteady come upon the distraught Leatherhead. They trick him into attacking the Turtles. Battle ensues. Eventually Leatherhead figures out that he was tricked, but then plummets to a seeming death.
And then... something shows up for the Turtles... but what???