With his tribe’s move to follow the migrating bison imminent, Yakari, the little Sioux boy, sets out on his own to follow the trail of Little Thunder, a wild mustang said to be untamable. On his journey, and alone for the first time in his life, Yakari is visited by Great Eagle, his totem animal. Great Eagle gives Yakari a magnificent feather as well as the incredible ability to speak to animals. Traveling far from home and deep into the territory of the terrible pumaskin clad hunters, Yakari and Little Thunder undertake a great adventure and find their way back home again. Their journey, through breath-taking but treacherous landscape, will forever seal the undying friendship between the bravest little Sioux boy and the pony who runs like the wind.