In the far future the descendants of humanity are moving back towards civilisation. A young warrior learns how to tame and ride horses which live on the far fringes of the forest near his farm. He hopes to export this skill to the larger country of his island but is foiled by their belligerent nature. Joining forces with them he discovers a secret third nation and unleashes a series of changes. He then finds that to achieve his goal he has to fight to the death against an unexpected rival.