When straight arrow FBI agent Roy Clayton heads up the investigation into a dangerous international conspiracy, all clues seem to lead back to former U.S. Special Operations Officer Samir Horn. The inter-agency task force looking into the case links Horn to a prison break in Yemen, a bombing in Nice and a raid in London, but a tangle of contradictory evidence emerges, forcing Clayton to question whether his quarry is a disaffected former military operative--or something far more complicated. Obsessed with discovering the truth, Clayton tracks Horn across the globe as the elusive ex- soldier burrows deeper and deeper into a world of shadows and intrigue.