Napa Valley, 1976. For connoisseur Steven Spurrier, there is no finer art than French wine. But rumors bandy about of a new California wine country that holds the future of the vine. Positive the small Napa wineries are no match for established French vintages, Spurrier challenges the Americans to a blind taste test. He finds the valley full of ambitious, and talented, novice vinters like Jim Barrett and his son Bo. He realizes his publicity stunt may change the history of wine forever.