Your Gold Mine Has Collapsed is the thirty-seventh Commander's Challenge mission in its mode. In a venegance to the defeat of Douglas Hill, Lydia Winters steps up to defeat the Commander of FutureTech. The Mirage Tank was brought to FutureTech despite the Soviet conquest of Europe in World War III which destroyed all of France. The Futuretech Commander wants it to research the tank before the Soviets invaded the continent and how his organisation survived in the Netherlands, along with Denmark and Great Britain as the last Allied nation before Ride of the Red Menace by General Krukov. This comes before Be Quick or Be Dead where Douglas Hill returns.