In an increasingly uninhabitable world where excessive heat waves have triggered global crop blights, mass food shortages, and a humanitarian crisis, the United Coalition of Nations has begun evacuating the remaining population to the safety of orbital outposts. When Jamal returns home from a supply run with an evacuation leaflet for their region, his older brother Abdi refuses to leave, believing that they can weather the storm. Jamal is torn between his loyalty to his brother and his desire to secure a better life for himself.