Coming together to solve a series of murders in New York City are a DEA agent whose family was slain as part of a conspiracy and an assassin out to avenge her sister's death. The duo will be hunted by the police, the mob, and a ruthless corporation.
John McClane is back and badder than ever, and this time he's working for Homeland Security. 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.