Rachel is introduced to a viral craze of allowing people who living the walls out into the world. This ends up badly and when her parents don't believe her two kids from her school do as they attempt to fight back against these creatures.
海登·克里斯滕森 杰西卡·阿尔芭 泰伦斯·霍华德 莉娜·奥琳 克里斯托弗·麦克唐纳 山姆·洛巴兹 艾利斯·霍华德 费舍·史蒂芬斯 乔治娜·查普曼 大卫·哈伯 丹尼斯·欧哈拉 普娜·贾甘纳坦 王李 Steven Hinkle 查理·海森 Court Young Joseph Costa Jeffrey Fierson 约书亚·罗林斯 Ross Klavan
