In the first and best Die Hard thriller (1988), Bruce Willis's maverick New York cop John McClane took on ruthless European terrorists in a Los Angeles skyscraper. A quarter of a century later John joins his CIA agent son in Moscow in an attempt to rescue a devious Russian oligarch from the hands of the Kremlin. They stumble into a murderous conspiracy involving Chernobyl and trafficking in enriched uranium. The poorest in the series, just one long, loud, violent, at times stupefyingly silly chase around Moscow. The chief suspense is waiting to see if John Jr will call McClane "Dad".