When Ryu returns to pay homage to his deceased mentor, Gouken, he is tormented by disturbing memories of his master's killer (Gouki). In a quest to become a true martial arts master, he sets out to hone his street fighting skills and deliver himself from the haunting legacy of the dark hadou.
Pandy and Retro awaken naked on Earth with no recollection of their past. They embark on a crime spree in search of food and clothing, but are captured by authorities and sent to the infamous lunar penitentiary named Dead Leaves.
Increasingly disturbed by the dark energies building within him, Ryu is confronted by Shun, a boy claiming to be the brother he never knew. But before Ryu can consider whether Shun's timely appearance might be more than coincidental, Shun is kidnapped by Shadowlaw. To recover Shun, Ryu must undertake the ultimate journey of self-discovery and learn to control the power threatening to consume him.
