John McClane is back and badder than ever, and this time he calls on the services of a young hacker in his bid to stop a ring of Internet terrorists intent on taking control of America's computer infrastructure.
When a willful young man tries to venture beyond his sequestered Pennsylvania hamlet, his actions set off a chain of chilling incidents that will alter the community forever.
For many years, Nathan Harper has had the uneasy feeling that life with his family isn't quite what it seems. As he draws closer to uncovering the truth, he is hunted by assassins, forcing him to flee with his neighbor, Karen, the only person he can trust.
