Nora Carleton is hitting her stride as Deputy US Attorney for the Southern District of New York when a high-stakes counterintelligence case pulls her into a deadly game with global implications. A Russian-style hit on an executive at an American drone manufacturer sends a chilling message—but what exactly is it? Was the victim a Russian mole or just a convenient target?

Teaming up with her longtime friend, Special Agent Benny Dugan, Nora launches a criminal investigation that takes them from New York to Las Vegas with the hopes of prosecuting a traitor who has put their country at risk. But as they dig deeper into the tangled web of Russian intelligence and those who profit from its reach, Nora finds herself in the crosshairs of powerful forces determined to keep their secrets buried.