影片改编自Maurice G. Dantec的畅销小说《Babylon Babies》。

在城市废墟寻找食物和庇护所，游荡了多年后，两兄妹找到了最后剩下的一幢建筑。在里面，有个怪人提出了一个危险的提议，以换取外部世界的生存。

An attorney with a military past hunts down the gang who killed his wife and took his daughter.