The Oggly family arrive at the municipal rubbish dump of Smelliville and must look for a new home, but they never feel really welcome anywhere. They stink and are for most humans just a tad too oggly. When Firebottom, the family dragon, crash-lands on the run-down rubbish tip of the small town of Smelliville, the Ogglies at once feel at home. And it's here they want to stay.
With his tribe's move to follow the migrating bison, Yakari, the little Sioux boy, sets out on his own to follow the trail of Little Thunder, a wild mustang said to be untameable. Travelling far from home and deep into the territory of the terrible cougarskins, Yakari and Little Thunder undertake a great adventure and find their way back home.