An alien starship dumps a space-trash in a swamp in a U.S. National Park. Some mosquitoes begin to feed from the alien's corpses, causing them to grow to the size of a vulture. These mutant insects became very aggressive, killing every human being they find. Will the few survivors fight successfully against this nightmare...? An alien starship dumps a space-trash in a swamp in a U.S. National Park. Some mosquitoes begin to feed from the alien's corpses, causing them to grow to the size of a vulture. These mutant insects became very aggressive, killing every human being they find. Will the few survivors fight successfully against this nightmare...? Parental Guide