James Bond (Roger Moore) retrieves a microchip from Siberia only to find out that it was manufactured by the company owned by Max Zorin (Christopher Walken), an aficionado of horse racing. Oddly enough, Zorin’s horses continually win as if drugged but always test clean. Bond goes to Paris for answers but his informant is killed by classy assassin May Day (Grace Jones). He discovers that Zorin, a product of evil Nazi medicine and KGB training, has been using microchips to make his horses win, and that he plans to rule the world by destroying Silicon Valley with explosion-induced earthquakes. After Bond’s first helper, British horse trainer Sir Godfrey Tibbett (Patrick McNee), is killed off by May Day in France, misguided California state geologist Stacy Sutton (Tanya Roberts) teams up with Bond in America. She has been betrayed by Zorin as has May Day, and the two go on to help Bond stop the billionaire psychopath’s evil plan.