After learning about the existence of his son Damian Wayne, Bruce is still attempting to reteach him away from his League of Assassin training. At the same time a new "vigilante" appears in Gotham calling themselves the Phantasm and they are slaughtering organized crime across Gotham, including the family of Selina Kyle aka Catwoman the Calabrese family. Bruce eventually figures out that it is his childhood girlfriend Andrea Beaumont who has returned to Gotham to avenge the death of her father. She also begins meeting with Damian trying to convince him to join her in killing criminals because Bruce doesn't understand that they need to die for Gotham to be saved. So Bruce must find a way to turn Damian into a hero and not murderer while he is being influenced by the Phantasm and he must prevent her from killing Selina Kyle- Bruce's fiance
