They murdered his boss, stalked his family and invaded his home. Now they want his life.

When jack Hunt is lured from his native Dublin to Chicago's top hospital, the talented young heart specialist sees a new life ahead for his family. The day he's appointed head of the unit, his own dreams are fulfilled.

But he's promoted into a nightmare. Random street attacks, mindless vandalism, round-the-clock surveillance. Within months Jack Hunt's world collapses.

His fight back sets him on a dangerous mission, uncovering explosive secrets. But he won't be able to tell the world if his enemies can find him first...