And what an engrossing history it is! Though many of Alba's castles lie barren and crumbling, they were at one point imposing fortresses that played an important part in all sorts of tribal treachery. Includes 2 bonus programs: The Edge of the Land, a stunning aerial journey of the coastline, and Scottish Verse, a moving collection of writing by native Scots against a backdrop of lush landscapes. 3 DVDs. 2009/color/5 hrs., 5 min/NR/fullscreen.