Sargon is the youngest member of the Immortals, an elite clan of warriors defending a Persian Empire worn down by decades of drought, famine, and war. After the Immortals turn back an invasion, Prince Ghassan is abducted and spirited away to the cursed Mount Qaf, a once-great center of learning now warped by a mysterious curse. Sargon and his comrades follow into the mountain's citadel, only to find themselves trapped by a strange time anomaly among undead soldiers and monsters. As Sargon recovers the feathers of the divine Simurgh and gains the power to bend time, he presses deeper into Mount Qaf to rescue the prince and uncover the truth behind the betrayal that set these events in motion.