Humans are few and far between since Earth was invaded by unseen extraterrestrial machines that harvest the planet's natural resources and relentlessly kill its inhabitants. In a remote part of the countryside, where starved humans have become as dangerous as the alien machines hovering in the sky, a feisty 19 year old girl, Sarah Connolly, sets out on a desperate attempt to fight back a group of bandits and defend her parents' farm, their remaining livestock, and the solar panels that keep them safe from extraterrestrials. If she doesn't succeed, she will lose her only source of food and shelter; but if she resists, she and her helpless blind sibling will be killed. And if the mysterious intruder dressed like a soldier who claims he can help them turns out to be a liar, then the enemy may already be in the house. 冷血，理性，隐忍和等待。 地球被外星机器人入侵，人类变得稀少和贫困。在偏远的乡村，饥饿的人们如同盘旋在天空中的外星人一样危险。一个精力充沛的19岁女孩Sarah Connolly（达科塔·布鲁·理查兹 饰）开始拼命反击一群饥饿的土匪，她保卫着她父母的农场、剩余的牲畜、和太阳能电池板……如果她不成功，她将失去唯一的食物与住所。
