A deadly secret whispered by a dying gunrunner on a lonely road in Zambia sets MI6 agent Sam Packer on a frantic race against time. A terrorist gang has acquired a horror weapon but before Packer can discover more, the man dies. Packer is faced with sceptical colleagues and the gunrunner's daughter Julie, who suspects it was Packer who engineered her father's death. Betrayed and compromised, Packer follows a faint trail of coincidences that began with his own father's disgrace twenty-seven years before...