While the head of the world's largest defense contractor conspires to gain even more riches by instigating a war, an intelligence agent reluctantly travels to keep the world safe, and a journalist receives a mysterious offer to interview the sole survivor of a recent massacre.

A missing Chinese scientist, unexplained noises emanating from under the Arctic ice, and a possible mole in American intelligence are just some of the problems that plague President Jack Ryan in the latest entry in Tom Clancy's #1 New York Times bestselling series. Aboard an icebreaker in the Arctic Ocean a sonar operator hears an unusual noise coming from the ocean floor. She can't isolate it and chalks the event up to an anomaly in a newly installed...