The Penguin's criminal enterprise and the Iceberg Lounge have been stolen from underneath him by his former associate the Umbrella Man. The Umbrella Man has removed all of the rules for crime in Gotham City that the Penguin put in place, and the city is in chaos. The Penguin is a broken man, and he'll have to travel through the burning streets of Gotham with a gun and a single bullet putting together a new crew to take back what he's built. Will Batman help the devil he knows or face the devil he doesn't in the form of the Umbrella Man?