Renowned wine importer Martine Saunier travels to Portugal's Douro Valley to explore the complex and mysterious world of port wine. Four award-winning winemakers and a new group of table wines cultivated in the very home of port are featured.

Renowned wine importer Martine Saunier travels to Portugal's Douro Valley to explore the complex and mysterious world of port wine. Four award-winning winemakers and a new group of table wines cultivated in the very home of port are featured.