Before the Foot Clan's leader Karai went mysteriously into seclusion, she ordered her Foot soldiers Natsu, Koya, and Bludgeon to let Manhattan's new District Attorney Hieronymus Hale do whatever he needed to do to take the Ninja Turtles off the board. But with Hale's militarized Foot Patrol wreaking havoc all over the city and bringing shame to the Foot name, Karai's mutant soldiers decide they can no longer stand idly by. Meanwhile, officers Kara Lewis and Monty Moose run afoul of the Foot Patrol, who’ve little interest in helping New York's finest keep the peace.