Few animals have captured the human imagination quite so powerfully as the eagle. Throughout the centuries, this majestic bird of prey has been a symbol of strength and courage, such is the perfection of its design. There are 60 types of eagle throughout the world, and this program embarks on a grand tour through 12 countries focusing on 15 of the most spectacular varieties. From the Philippine eagle (only 30 pairs survive in the wild) to the bald eagles of Alaska, each type has adapted to a different environment so that few places on earth can escape eagle eyes.