Jack Ryan Jr. stands alone against powerful enemies in this thrilling novel in Tom Clancy’s #1 New York Times bestselling series.
 
On a mission in Tehran, Jack Ryan, Jr., meets his oldest friend, Seth Gregory. As they part, Seth slips Jack a key, along with a perplexing message. The next day Jack is summoned to an apartment where two men claim Seth has disappeared with funds for a vital intelligence operation....

When Russian President Valeri Volodin's ambitions are foiled in Dagestan, he faces a difficult choice. The oligarchs who support him expect a constant flow of graft, but with energy prices cratering, the Russian economy sputters to a virtual halt. A floating natural gas facility in Lithuania is blown up. A Venezuelan prosecutor is assassinated. A devastating attack on a Russian troop train kills dozens. Only one man recognizes an ominous pattern in...