Following the disastrous twelfth expedition chronicled in 'Annihilation', the second book of the Southern Reach trilogy introduces John Rodriguez, the new head of the government agency responsible for the safeguarding of Area X. His first day is spent grappling with the fall-out from the last expedition. Area X itself remains a mystery. But, as instructed by a higher authority known only as The Voice, the self-styled Control must battle to 'put his house in order'.