A year in the life of one New England family as they work to preserve an ancient, lucrative, and threatened agricultural art--the sweetest harvest, maple syrup . . . How has one of America's oldest agricultural crafts evolved from a quaint enterprise with "sugar parties" and the delicacy "sugar on snow" to a modern industry? At a sugarhouse owned by maple syrup entrepreneur Bruce Bascom, 80,000 gallons of sap are processed daily...