The Great Lakes hold a massive amount of water. They contain one fifth of the world’s fresh surface water. In the U.S., there are more miles of coastline along the Lakes than along the entire Atlantic seaboard. We think of the Lakes today as a great place to play on the beach, to swim, to go fishing.But those huge, beautiful lakes are changing. So fast that the agencies which manage fishing cannot keep up with the changes. On average, a new foreign species gets into the Lakes every seven months. Each could be a threat to the lakes and the fish in the lakes. In this special one-hour documentary, we explore the health and future of the Great Lakes, and hear stories about fish and the people who catch them.