Iran's most covert operation is revealed in The Minders, a thriller about a complex terror plot triggered by text messages, which in turn unearths three decades of clandestine work.

The unwitting terrorists include the CEO of a multi-billion dollar American company, a division head at the World Health Organization, and a Stanford graduate with a doctorate in mechanical engineering. The story dives deep into the ease by which several highly placed and successful Iranian-Americans react to coercion, partaking in a massive terror plot, all controlled by a...