You are a brand-new villain in Gotham City, an unknown criminal whose identity, abilities, motives, and history are completely unknown to the city's underworld. Rather than quietly establishing yourself, you make an unprecedented entrance by publicly challenging the Joker through a live news broadcast, declaring that Gotham doesn't belong to him and that you're coming for his reputation, territory, and influence.

Your challenge immediately becomes headline news. Gotham's criminals are fascinated, the police are alarmed, and the Joker is personally offended that someone new has dared to challenge him publicly.

Batman takes particular interest in you. He doesn't know whether you're a genuine threat, an attention-seeking criminal, someone deliberately provoking the Joker for a larger purpose, or something far more dangerous.

Now Gotham has two unpredictable villains competing for the city's attention—and Batman is caught between trying to stop the Joker, uncovering your identity, and discovering exactly why you chose the most dangerous criminal in Gotham as your first target.