本片是一部美国科幻片，上映于1998-03-21，由Peter Geiger导演，由Isabella Hofmann/埃里克·阿兰·克莱默/James Avery主演。
剧情简介：A group of aliens arrive on Earth as part of an advance invasion force. Their mission is to kidnap a small sample of humans and run them through a series of rigorous tests to determine if they would make suitable slaves. Harper, one of the alien experimenters, has become frustrated with her planet's endless cycle of conquest and extermination and begins to feel some sympathy for her human captives. While the prisoners see a glimmer of hope in the compassionate alien, will it be any use in stopping the enormous attack fleet just a few days from Earth?
外文名：The Advanced Guard
类型：科幻 / 惊悚 / 电视电影
地区：美国
导演：Peter Geiger
演员：Isabella Hofmann / 埃里克·阿兰·克莱默 / James Avery / 杰夫·科伯 / 迈克尔·韦瑟利 / John Prosky / 克里斯蒂·康纳威 / Clare Salstrom / 珍妮佛·奧戴爾
