Attempting to connect with his teenage son, a video game designer creates the ultimate video game villian: RA. ONE. However, when the villainous program becomes self-aware, it escapes from the game and kills the father, and sets his sights on the son. Hunted by the digital demon because he's the only player to ever defeat him, the boy must extract the game's hero - designed in his father's image, and work together to stop RA. ONE before it's too late.