Pogue gives the third degree to scientists pushing the limits of technology -- not only to solve horrific murders -- but also to try to prevent crimes before they even happen. He learns the latest techniques, from unraveling the clues embedded in a decomposing corpse, to detecting lies by peering directly into a suspect's brain, to tracking the creation of a criminal mind. And we meet a genius crime-stopper who's made some terrifying discoveries, including how easy it is for a bad guy to highjack -- not just your laptop -- but your kids' toys, medical devices and even your car.