Nightwing investigates a string of murders that at first seem disconnected…but when signs start to point to the digital underworld, the mean streets of Blüdhaven begin to transform. So how does a hero like Dick Grayson-—used to using his fists to solve problems—stop a villain he can’t get his hands on? Especially when Blüdhaven isn’t the only thing compromised by a tech implant in this new “smart city” initiative…so is Nightwing’s mind.