Monty Don he tells the stories behind France's most important historic gardens. These include elaborate walled gardens designed to please the mistress - and then the wife - of a king, magnificent displays of flowers and fountains that involved thousands of soldiers moving tracts of land and incited violent jealousy in another monarch, and a modern-day chateau garden that came close to bankrupting its owner. Monty sees how throughout history the French have used gardens as a public expression of money, power and passion.