A tough Russian policeman is forced to partner up with a cocky Chicago police detective when he is sent to Chicago to apprehend a Georgian drug lord who killed his partner and fled the country.
Iconoclastic, take-no-prisoners cop John McClane, finds himself for the first time on foreign soil after traveling to Moscow to help his wayward son Jack - unaware that Jack is really a highly-trained CIA operative out to stop a nuclear weapons heist. With the Russian underworld in pursuit, and battling a countdown to war, the two McClanes discover that their opposing methods make them unstoppable heroes.