A ferocious storm cruelly separates the young colt, Tiarri, from his mother and dumps him beside an orphaned dingo pup. Tiarri saves the pup's life from a marauding eagle, and from this battle springs a friendship that defies every law of nature. It is a bizarre friendship between three animals that ordinarily would never associate. Together they roam the magnificent Snowy Mountains and survive repeated attacks from bush animals unsettled by their uncanny alliance. Binding them is the brotherhood of every silver brumby that ever walked the Cascades and the apparition of Thowra, the most wondrous silver stallion of them all ...