When we last saw Bruce's John McClane, he was busy trying to save his daughter (Mary Elizabeth Winstead) and thwart a domestic techno-terrorist (played by Timothy Olyphant) with the help of hacker genius Justin Long. Now, McClane's son Jack (Jai Courtney) is the focus when he gets into trouble while in Russia. McClane flies to Moscow to help him out, only to find out the Die Hard way that Jack is really a highly-trained CIA operative out to stop a nuclear weapons heist from Russian underworld baddies.
"Need a hug?" asks McClane to his son during a pivotal breather.