求《虎胆龙威4》的英文剧情简介！！！

虎胆龙威4.0/英文剧情介绍：

When a criminal plot is in place to take down the entire computer and technological structure that supports the economy of the United States (and the world), it's up to a decidedly "old school" hero, police detective John McClane, to take down the conspiracy, aided by a young hacker.