In a dystopian future where a nuclear-ravaged America is under Russian control, Elvis reigns supreme in Lost Vegas. Buddy, a blend of '50s rock star and fierce warrior, travels towards the neon-lit city, intent on claiming the title of King from Elvis. With his guitar slung over one shoulder and a sword in hand, Buddy encounters an orphan who, inspired by the rocker's charisma, chooses to accompany him on this perilous journey filled with music, adventure, and the fight for power.