Following the events of The Batman, a post-flood Gotham City is experiencing a power vacuum in its criminal organizations after the death of Carmine Falcon. In the midst of all this chaos, low-level mobster Oswald "Oz" Cobb, nicknamed "The Penguin", attempts to make a grab for control of the streets, which brings him into direct conflict with Carmine's daughter, Sofia Falcone, and the Maroni Crime Family.