After a system built to regulate Earth's temperature fails, the world is plunged into a permanent winter. The population is rapidly declining, resources are buried under snow, and governments are powerless. Ambrosio, a former pastor with a troubled past, crosses paths with Nikolai and a small group of survivors. Driven by an ambitious goal to restore the world, a brilliant engineer discovers a possible solution—only to realize that the system's collapse doesn't fully add up.