The book is a sprawling narrative that intertwines two timelines: the first during World War II, focusing on the efforts of cryptographers and mathematicians working to break Axis codes, and the second in the late 20th century, following a group of entrepreneurs and hackers establishing a data haven in Southeast Asia. The novel explores themes of cryptography, mathematics, and the history of computing, weaving together real historical figures with fictional characters. As the plot unfolds across different continents and eras, it delves into the impact of information technology on society and the perpetual conflict between governments and individuals over the control of information and privacy.

The book is an apocalyptic horror novel presented as a collection of individual accounts in the aftermath of a global pandemic that leads to a catastrophic zombie outbreak. Through interviews with survivors from various countries and walks of life, the narrative unfolds the social, political, cultural, and environmental implications of the zombie crisis, known as World War Z. The personal stories explore the widespread panic, the collapse and resurgence of governments, military strategies employed to combat the undead, and the human resilience in the face of a decimated world. The novel serves as a critique of societal responses to disasters and a commentary on the human condition.

This two-volume science fiction narrative follows a group of historians from 2060 who travel back to World War II-era England for research purposes. However, their mission goes awry when they become trapped in the past due to irregularities in the time travel system. As they navigate the dangers of the Blitz and other historical events, they must also confront the possibility that their actions could alter history. The characters grapple with the chaos of war, the intricacies of time travel, and the moral dilemmas of potentially impacting the future, all while trying to find a way back to their own time.