From the Pulitzer Prize-winning New York Times journalist comes a pulse-pounding technological thriller—as ingenious as the works of Michael Crichton and as irresistible as a summer blockbuster—in which one man has three days to prevent the outbreak of World War III and the world's annihilation

What if you knew the world was going to end? What if no one believed you?

Jeremy Stillwater is a genius with computers but not so much with people. Maddeningly self-righteous, he's alienated his girlfriend and infuriated his Silicon Valley financiers and the government agents who saw military promise in his innovation: a program that seemed to be able to predict war.

Even Jeremy has begun to doubt the algorithm's capabilities. Then one day his computer has a message for him. War is coming. Three days and counting until massive nuclear conflict.

Is it real? A malicious joke? A bug?

Isolated yet relentless, Jeremy soon uncovers an ancient conspiracy of unspeakable danger. And it will take every bit of Jeremy's stubborn ingenuity to survive another minute, let alone save the world.