When Jack Ryan foils an Ulster Liberation Army terrorist attack on the Prince of Wales and his family, his courageous actions not only win him the admiration of an entire nation, they also arouse the enmity and hatred of that nations most dangerous men. Now a ULA target himself, Ryan plunges into the murky world of counter-intelligence, where he uncovers a connection between the ULA and an international underground network that places him at the forefront of the deadly battle against international terrorism, and pitches him into the most desperate struggle of his life...