In Dakota territory in the 1870s, White Bull, a young Sioux, proves his manhood by catching and training a wild colt he names Tonka. When a cruel cousin claims the horse as the privilege of rank, White Bull lets Tonka go. The horse ends up in the hands of a captain in the US cavalry about the time that Sitting Bull gathers the tribes to confront the growing US presence, epitomized by the bigoted General Custer. All paths, including those of White Bull and Tonka, lead to the confluence of the Little and Big Horn rivers.

A stranger in a Western cattle-town behaves with remarkable self-assurance, establishing himself as a man to be reckoned with. The reason appears with his stock: a herd of sheep, which he intends to graze on the range. The horrified inhabitants decide to run him out at all costs.

Super-spy Flint takes on a cabal of women plotting to rule the world.