Taejong, the father of King Sejong, wields his power and authority over his son to execute all his enemies, including Sejong's father-in-law.

Sejong's small act of defiance leads to a massacre, and an unimaginable request from his father.

Sejong and his father engage in a battle of the wits as young Ddol Bok struggles to survive in the Slaves' Quarters.