Ma Mere and Theo are the sons driver of a village in southern Sudan. When the militia attacked their village in the north, destroying their houses and killing their parents, the eldest son, Theo, is bound to take the lead. He will lead the group to freedom of children, survivors of the massacre, among whom was his sister, Abital. But that will pass through the hostile lands will again put lives at risk.
On the road bumpy, the refugee camp Kakuma in Kenya, they meet other kids fugitives, linking a close friendship with Jeremiah, who, at 13, is already on the path of faith and Paul, whose qualities are essential in their fight for survival.
After 13 years, children who have now become adults, will be offered the chance to leave the camp and settle in America. When arriving in Kansas City, they are greeted by Carrie Davis (Witherspoon), an adviser to the agency for labor, which should help them find a job, working place easily if we think the switch Electric and phone were absolute news for them.
Although Carrie was always away from emotional involvement, these refugees, which must accommodate primarily XXI century to rebuild their lives destroyed desperately need help and affection. Thus, Carrie is forced to engage in exploring this virgin territory, calling on the help of her boss, Jack (Corey Stoll).
Together, these have lost fortunes and these aliens manage to find both fun part of cultural differences and the painful and hopeful life in America.