A teenage girl is raised underground by a kindly robot"Mother" -- designed to repopulate the earth following the extinction of humankind. But their unique bond is threatened when an inexplicable stranger arrives with alarming news.A teenage girl is raised underground by a kindly robot"Mother" -- designed to repopulate the earth following the extinction of humankind. But their unique bond is threatened when an inexplicable stranger arrives with alarming news.詳情