After the events of Blood Money, CIA case officer Bai Hsu is assigned to a high-security private school for what he's told is an easy assignment. Just a few months after he arrives, a hostile operative with ties to North Korea tries to break in to a school event, with motives unknown. As his investigation progresses, he unravels a plot that, if not stopped, will result in the untimely and murderous deaths of tens of millions of people. Bai Tide is Bai's greatest challenge yet. A mission that will take him from the windswept beaches of San Diego to a whiteout blizzard in the foothills of Pyongyang, and make him question everything he thought he knew about working in the field...and about himself.