Black Fury; Harve Logan (rancher); Morg; Jace; Pete
After Black Fury repeatedly frees his horses, rancher Harve Logan puts up a $1,000 reward for his capture. Old-timers Morg & Jace hope to get the money, but also the respect of proving themselves to disrespectful younger types. When they find Fury suffering from a rattlesnake bite, they nurse him back to health. But on learning Logan has no intention of using Fury for breeding-- he just wants to SHOOT him-- they let the horse go free.
Eagle Plume, breeder of "buffalo horses", dreams of making Black Fury one of his herd and seeing him breed many great horses in his image. But Fury proves elusive, and Plume's father warns him that alone, he may be the target of white men, and if killed it could lead to a war. Sure enough, a couple of angry cowboys take shots at him, wounding him and scaring off his horse. But Fury arrives and shows Plume a hidden watering hole known only the the wild horses, saving his life. In return, Eagle Plume considers Fury his "brother" and gives up the hunt.
Black Fury, king of the wild herd, takes great pride in his young offspring. But the colt has violent tendencies, attacking his mother, other horses, and finally challenging Fury for leadership of the herd. When the Colt is injured falling against a rock in a stream, Fury is concerned. But after they both emerge safely from the water, Fury lets it be known that it's too late for forgiveness-- and his "son" is BANISHED from the herd.