Theo, a civil servant who is aimlessly wandering through a devastated world, is kidnapped by a secret group called the Fishes. The group includes his ex-wife Julian, who urges Theo to help with a secret operation. The mission is to safely transport a young woman named Kee across the country to the seaside where a ship from the Human Project is waiting. As Theo becomes more involved in the plan, he realizes that Kee is pregnant, which is a rare occurrence as no children have been born for the past 18 years.