In the heart of a city perpetually shrouded in shadows, a dangerous alliance threatens to unleash a monstrous threat upon Gotham. KGBeast, a lethal assassin driven by vengeance, seeks to obtain the Man-Bat serum created by Dr. Kirk Langstrom. His goal: to deliver the serum to the enigmatic and formidable Ras al Ghul, leader of the League of Assassins. As KGBeast's path of destruction collides with Batman's relentless pursuit of justice. In a high-stakes battle against time and terror, Batman must prevent the serum's deadly potential from falling into the hands of those who would use it to plunge the world into chaos
