Marcus Blake's ramshackle security agency has no clients to speak of… But one day, Susan Ellis walks into his office and asks him to help find her brother who has gone missing in Afghanistan. In that moment, Marcus' world is turned upside down and he is plunged into a covert war where arms and drugs are traded by renegades within the CIA. Now, in his quest to find Susan's brother, Marcus faces terror and betrayal in a dangerous world where one cannot tell friend from foe.