An alien starship crashes in a swamp in a U.S. National Park. Some mosquitos begin to feed from the alien's corpses, causing them to grow to the size of a vulture. These mutant insects became very agressive, killing every human being they find. Will the few survivors fight successfully against this nightmare...? 　　译文(2): 一艘外星飞船坠毁在美国国家公园的沼泽里。一些蚊子开始以外星人的尸体为食，使它们长得像秃鹰一样大。这些变异昆虫变得非常具有攻击性，杀死每一个他们发现的人类。少数幸存者能否成功抵抗这场噩梦？