简介
双胞胎兄弟蓝俊宇和蓝少杰因幼时父母离异被迫分居，过着天壤之别的生活。多年后两兄弟再次相见，蓝少杰目睹弟弟俊宇过着穷困潦倒被同学排挤的生活决定跟蓝俊宇身份互换，蓝俊宇因此以哥哥的名义进入清江市最好的学校。在学校里蓝俊宇认识了富有正义感爱替人出头却屡招嫌诬陷的骆熙，在得知洛熙曾经帮助过蓝少杰继父的儿子黎昕时，他决定挺身而出帮助洛熙。在这之后蓝俊宇虽因此丢掉了学生会主席的职位，但却获得了同学们内心的支持。就在蓝俊宇打算结束这次身份互换时却被告知这次的交换远还没有结束，他的母亲江秀告诉了他这次交换背后的计划。尽管不愿意，但在母亲和哥哥的合力劝说下，蓝俊宇还是接受了这个计划，蓝俊宇从此成为了哥哥的影子。。中国早期引进的科幻译制片（其实本质是个僵尸电影。。。）
Two sisters, high school seniors in the early 1980s, awaken one morning to blood red skies and the realization that the human race has been wiped out. It becomes apparant that anyone who was not surrounded by steel when the Earth recently passed through the tail of Haley's comet has been reduced to a pile of red ash (the trace elements of human chemical makeup.) They encounter a rebellious Native American man and take over the air waves at a local radio station in an attempt to get help. Unfortunately, they attract the attention of a group of scientists who knew what the effects of the comet would be. They hid underground in a steel laboratory, but idiotically left the vents open. Now, as various survivors of the comet who were only partially surrounded by steel are decaying into flesh-hungry zombies, the scientists are attempting to come up with a vaccine made of the blood of people who were not infected by the comet. Thus the trio must fight their way past not only roving packs of the cannibalistic dead, but also outsmart a pack of scientists desperate not to become that way themselves.。