Agriculturists large and small, traditional and cutting edge, are featured. Included: Ross Koda, a third-generation Japanese-American, who runs a renowned Central Valley rice farm and hopes to keep it in the family; Kristyn Leach, who hand grows artisanal, heirloom Asian produce for one of San Francisco's most popular restaurants; and, on the gorgeous Half Moon Bay coast, a pair of electricians who operate America's first wasabi farm.