nIn this Jack Ryan thriller, #1 New York Times bestselling author Tom Clancy delivers an electrifying story of intrigue, power, and a family with two generations of heroes.... n nDecades ago, as a young CIA analyst, President Jack Ryan Sr. was sent out to investigate the death of an operative--only to uncover the existence of a KGB assassin codenamed Zenith. He was never able to find the killer.... nIn the present, a new strongman has emerged in the ever-chaotic Russian republic--the enigmatic President Valeri Volodon. But the foundations of his personal empire are built on a bloody secret from his past. And none who know of it have lived to tell. For he has set a plot in motion--a plot to return Russia to its former glory. n nBut when a family friend of Ryans is poisoned by a radioactive agent, the trail leads to Russia. And Jack Ryan Jr.--aided by his compatriots John Clark and the covert warriors of the secretive Campus--must delve into an international conflict thirty years in the making, and finish what his father started. n nWith President Ryan fighting the political battle of his life, and his son fighting a silent war against a ruthless foe, global conflict becomes imminent--and the possibility of survival may soon be lost for all....n