After Clint Adams and Eclipse are injured in a fall, they are cared for by a lone Indian brave who promises to stay with the horse while Clint goes for help. Clint finds he has a deadly journey on foot ahead of him, to get help for the big Darley Arabian-and himself-or the horse may die. Although successful in getting treatment, Clint finds that during the time of their recovery they will become embroiled in the problems of a lady rancher whose property is in danger of being bought out from under her. Because he owes her, Clint takes it upon himself to make her deadly troubles his.