In the post-apocalyptic wasteland, Laila, the only carrier of the pure serum, is hunted by raiders. She forges a life-and-death symbiotic contract with Orion, a war-lord disguised as a repairman. Together with their companions, they break through the relentless hunts, uncover the secret of the serum, and battle the forces of evil, founding a vibrant new order upon the ruined wasteland.