'All warfare is based on deception.' According to General Malik, Pakistan is defined by three 'A's: Allah, Army and America. Yet, for one brilliant and educated man, the war isn't based on religious extremism. It's personal.

When his family's compound is bombed by a US military drone, Professor Omar swears revenge...The war of intelligence between Pakistan and the USA is raging. America is on the alert. Within this tense environment, it is unsurprising that Howard Egan's worst fears about his latest mission are confirmed, and he later disappears without a trace.

Sophie Marx - a US officer noted for her beauty and determination - is tasked with investigating the incident, but when several of Egan's 'invisible' agents are murdered, it becomes clear that there are darker forces at work than first realized.

Embarking on a game of cat and mouse in Los Angeles, Karachi, and the financial heart of London, Sophie and her team must try to plug the leak before it's too late. However, in a world created and sustained by multiple identities, the truth is hard to find.