Every May, hundreds of motorcyclists depart Ontario, California for a ten-day journey across America to Washington, DC. When the motorcyclists, consisting of veterans, their supporters, families and friends, reach Washington for Memorial Day weekend, they participate in the Rolling Thunder Rally. Rolling Thunder takes place at the Pentagon parking lot with nearly half a million motorcyclists. The event concludes with an emotional memorial at The Wall.
Life for former United Nations investigator Gerry Lane and his family seems content. Suddenly, the world is plagued by a mysterious infection turning whole human populations into rampaging mindless zombies.
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.