Peter Keyes: How many times do I have to tell you? You don't know what you're dealing with.
[clicks on computer]


Peter Keyes: There's your killer. Wonderful isn't it? Pheromone signatures left by his body. These are scent molecules.
[to worker]


Peter Keyes: Punch up for me. Ten years ago one of his kind stalked and eliminated an elite special forces crew in central America. There were two survivors. They indicated that when trapped, the creature activated a self-destruct device that destroyed enough rainforest to cover 300 city blocks. Remarkable weaponry. That's right lieutenant. Other-world life-forms.