Deep in the Great Plains of South Dakota, a tribe of mighty buffaloes finds themselves without a leader. A tricky bull named Barrag takes control of the group until the brave young Oknu challenges the new leader. Good and evil, treachery and bravery, pride and wisdom all feature in L. Frank Baum's fairy tale set during the heyday of the buffalo on the Great Plains.

On the Western prairie, a greedy buffalo makes a deal with an evil spirit to become the new king of the powerful Okolom herd.