In a medieval fantasy world where humans are losing a war against Orcs, the king sentences all criminals to labor in ore mines to forge weapons. To prevent escape, twelve magicians erect a magical barrier over the mining colony, but the spell goes out of control, trapping the magicians inside and allowing the convicts to overthrow their guards. The prisoners split into three factions: the Old Camp, which trades ore with the king; the New Camp, which hoards ore to attempt destroying the barrier; and the Brotherhood, a religious group worshipping a being called the Sleeper. An unnamed prisoner is thrown into the colony carrying a letter for the Fire Mages. After joining one of the factions and uncovering that the Sleeper is actually a dangerous demon summoned by the Orcs centuries ago, the hero must find a way into the temple beneath the Orc city to confront and banish the creature, which causes the barrier to collapse and frees the colony.