Reports emerge globally about a mysterious infertility crisis leading to the cessation of human births.
Formation of the United Nations as a global peacekeeping body; background for global governance in the film's world.
Social and political order begins to collapse due to environmental disaster and war, setting the backdrop for dystopian themes.
In response to massive refugee crises and domestic unrest, Britain declares a state of emergency.
A baby is born to Kee, marking the first known birth in almost two decades, giving hope for humanity.
Worldwide human infertility begins, causing no children to be born for over 18 years.
Societies worldwide begin to collapse due to the uncertainty and despair caused by infertility and ongoing wars.
The British government enforces strict immigration policies, heavily surveilling and imprisoning refugees and immigrants.
Anti-immigrant propaganda with fish symbols appears on refugee centers, signifying hostility.
The Fishes, a militant pro-immigrant group, begins active resistance against the government.
Theo, a former activist, becomes withdrawn after the death of his wife and the decline of hope globally.
Julian, a former activist and mother to Kee, is captured for aiding immigrants.
Julian entrusts her daughter Kee to Theo to deliver her to the Fishes for safety and possible escape.
Theo reluctantly agrees to escort Kee to the Fishes headquarters despite risks.
The government raids and attacks a refugee camp causing multiple casualties and destruction.
Kee reveals she is the first pregnant woman in 18 years, a miracle sparking hope for humanity.
Theo transports Kee to a safe house to protect her from government agents and the Fishes.
Military forces attack the safe house attempting to capture Kee and Theo.
Julian is killed during a raid while trying to keep Kee safe.
After experiencing loss and learning of Kee's pregnancy, Theo commits fully to protecting her and helping the Fishes.
Theo, Kee, and others make their way to the coastline to meet the Human Project, a secretive organization hoping to help Kee and future children.
Theo sacrifices himself to ensure Kee's safe passage to a boat bound for the Human Project.
Kee boards a boat to the Human Project, carrying the hope of humankind's future.