Each episode seems separate, discrete, yet the timing disturbs Clark. Is there a connection? Is he being tested? With the help of his close associates, executive officer Alistair Stanley and strike team leaders Domingo Chavez and Peter Covington, Clark tries to figure out where all this activity is heading, but there is no way to predict the real threat: a group of terrorists like none the world has ever encountered, a band of men and women so extreme that their success could literally mean the end of life on this earth as we know it.
It is Tom Clancy's most shocking story to date -- and closer to reality than any government would care to admit.