With its spectacular beaches and charming towns, Cape Cod is known around the world as a vacation spot and a summer retreat for the well-to-do. But there is another Cape Cod, a hidden, hardscrabble, year-round world whose hunter-gatherer economy dates back to the Bay Colony. The world of the independent fisherman is one of constant peril, of arcane folkways and expert knowledge, of calculated risk and self-reliance -- and of freedom won daily through backbreaking, solitary work. It is a way of life deep in the American grain. Haunted by the numbers of family fishermen who have recently been...