2015 год. With one bite of his magic bone, Sparky lands in the Amazon rainforest in Brazil among biting bugs and dogs with...webbed feet!? The Bush Dogs declare him their new leader when he saves their home from the metal machines that threaten to destroy the jungle. In fact, the machines have flattened so many other trees that Sparky can't find where he buried his bone! At last he discovers it, names one of the Bush Dogs the new leader of the pack, and makes his way home.