Immediately after World War II, two American officers (played by Bill Zane and Lyne Renee) are stationed in Frankfurt, Germany, killing time in the fancy Kronberg castle. They discover there a cache of priceless jewels, formerly owned by the royal family. But when the two lovers try to smuggle the treasure back in the US and sell it, their plans become quickly complicated by military investigators and violent criminals. Now, if they are able to remain faithful to each other, they may become incredibly rich.