In 17th century Japan, the ninja Kamui is a fugitive after leaving behind his murderous ways to search for true freedom. His fellow ninjas hunt him relentlessly, eager to punish his betrayal of the ninja laws. Locked in a constant fight for his life, Kamui’s distrust of others finally begins to fade when he encounters the family of a simple fisherman – but even as the ninja wonders if his peace has finally been found, his lethal pursuers ready their trap.