47 is an "agent", a Genetic engineering Human enhancement supersoldier created decades ago by Doctor Petr Litvenko, a skilled Ukrainians geneticist who had a crisis of conscience and disappeared before the Agent project's completion, leaving behind his daughter Katia. 47 works as a hitman for the ICA (International Contracts Agency) and has spent the last few years tracking down Katia as a means to find her father. His most recent targets were mercenaries led by Delriego who have been trying to find Litvenko in order to recreate the agent program for their own means.