Following the events of "Hitman", Agent 47 embarks on a mission to hunt the mysterious "Shadow Client" and disassemble his militia. His first lead is the location of one of the Shadow Client's lieutenants, Alma Reynard. 47 is able to gain some intel on the Shadow Client's activities from Reynard's home in New Zealand before eliminating her. Impressed with 47's performance, Providence authorizes him and the ICA to hunt down the rest of the Shadow Client's militia. When 47 asks Diana why the ICA would be willing to work with Providence, she replies that both organizations share interests in putting a stop to the Shadow Client, whose activities are now causing a global panic. She also reveals that Providence secretly promised to her to reveal 47's past. Following the intel gained from Reynard, 47 is sent to Miami to assassinate tech giant Robert Knox and his daughter Sierra, the owner and heir of Kronstadt Industries. They secretly sold advanced weapons to war criminals and are Providence members who defected to the Shadow Client's side, presumably to protect themselves from his attacks. Meanwhile, the remaining members of Providence descend into consternation as more of their operatives are killed worldwide. Despite this, Providence manages to identify the Shadow Client as Lucas Grey, the former head of security to deceased Providence key-holder Eugene Cobb. Grey, located in Central Europe, pursues his own plans with hacktivist Olivia Hall and insists that they need 47's help if they are to dismantle Providence.  47 heads to Colombia next in order to assassinate drug lord Rico Delgado and his top lieutenants, who have been using their smuggling network to aid Grey and his militia. Diana reports the mission's success to Providence while visiting the graves of her family in Surrey. Flashbacks reveal that she witnessed her parents being killed by a car bomb after they attempted to bring the company responsible for her brother's death to court. Shortly after Grey steals an item from the Ether Corporation in Johannesburg, his militia use a hostage situation to publicly reveal Providence's existence.  47 is sent to Mumbai to track down and eliminate the pirates who killed a Providence operative in Shanghai. After the mission, 47 follows Grey's trail to Romania, back to the same asylum where he was created by Dr. Ort-Meyer. He encounters Grey, who reveals that they were both previously kept in the lab to be raised as assassins for Providence. 47 regains some of his memories, remembering that Grey was Subject 6, and that they both made a pact to take revenge on those responsible for turning them into assassins.