Aryee meet the fastest, strongest and most unusual looking domestic dogs on the planet - all descended from the wild gray wolf. In the Mongolian wilderness, we find the Bankhar, a native dog that protects livestock from predators; then, it's to the deserts of the Middle East to meet the Saluki - speed-demon canines that can reach up to 40 mph. Later, Aryee heads north on a dog-sledding adventure with the sturdy and strong Inuit Sled Dog, and while heading back south, he finds the loyal Newfoundland working among fishermen and the Cattle Dog riding alongside cowboys.