>>149171320
Mask of the Phantasm style.
The Turtles get a new student at their school, Oroku Karai, who hits it off well with them, especially Leo. We later see her get picked up by "her father" in an oddly familiar van.
Later, the boys are out crime fighting when Shedder, after observing them in action, proceeds to dog walk them before Splinter and the Mutanimals bail them out.