Batman, with the help of the Flash, Green Arrow, Nightwing, and Red Robin, has to try and get to the bottom of the mysterious robotic animals attacking Gotham.Batman, with the help of the Flash, Green Arrow, Nightwing, and Red Robin, has to try and get to the bottom of the mysterious robotic animals attacking Gotham.Batman, with the help of the Flash, Green Arrow, Nightwing, and Red Robin, has to try and get to the bottom of the mysterious robotic animals attacking Gotham.