In the distant future, heightened solar irradiation has devastated Earth's environment, causing a sharp decline in the human birthrate. The government maintains control over society through an army of cloned soldiers known as "Ideal Children (IC)". Sam Coyne works as a trader in the desert. One day, he rescues a beautiful woman named Maya, who is being pursued by Theseus, a unit of IC. He takes her aboard his trade ship for shelter, but the destroyers of Theseus soon surround Sam and Maya.