In Napa Valley, Calif., the six remaining food truck teams gohead-to-head in a grape-stomping competition with a uniqueprize. Host Tyler Florence challenges them to incorporate redwine in a dish for a taste test he judges, and he forces theteams to get back to their roots and compete for sales theold-fashioned way. After two days of selling, one team has astellar sales total, and one truck must close its doors forgood.