When an eminent scientist makes a startling breakthrough in nuclear weapons research only to have the lives of his family threatened if he does not give his technology to the Iranian regime, Sean Dillon, Afghan war hero Sara Gideon and the rest of their team embark on a daring rescue mission that rapidly spins out of control.

"A devil is indeed waiting. The President is coming to London, but not to an entirely warm welcome. A fanatical mullah is offering a blessing to anyone who will assassinate the President, and though most London Muslims think the mullah has crossed the line, a few think otherwise. Urgently, Sean Dillon, General Charles Ferguson, and the rest of the small band known as the "Prime Minister's private army" are called in, augmented by an extraordinary...

A disturbing tape has made its way to British intelligence, and from them to the new President of the United States: battlefield chatter from an ambush in Afghanistan, in which twelve U.S. Army Rangers and a British medical team died. Most of the Taliban voices are Afghan; however, the voice of the commander bears an Irish accent. The idea that one of their own could be responsible for such a massacre is appalling, and Sean Dillon is put in charge...