内容简介：
21世纪中期，环境问题成为困扰人类的一大难题。科学家利用宇宙飞船将大气层中多余的二氧化碳气体运送到木星的一个卫星"木卫四"上，以降低地球上的温室气体浓度。
几年后，A国发生了一起严重的核泄漏事故，领导建议契机在木卫四上建立垃圾基地，将核废料运到上面。这一次，飞船达到"木卫四"后突然失踪。紧接着人类遭到了来路不明的外星人的袭击。外星人派出人造地球人潜入地球，并使出植物病毒、太阳棱镜等一系列新式武器，人类危机重重！
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