Robots that think, move like humans, and fight our wars--Real Terminators--may now be possible. At leading universities and covert government laboratories, robots are currently being developed in man's image; cyborgs with superhuman strength, machines that may eventually be able to make decisions, even kill on their own. But will these very robots designed to protect us ultimately turn on their masters?

An examination of the efforts being used to prolong life, including growing replacement body parts in a lab, creating microscopic robots that can eradicate deadly diseases, and reversing the aging process.