Season 1
24 episodes
66 min. per episode
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An intrepid investigator uncovers a deadly conspiracy, battling genius minds and secrets that could reshape a kingdom's future.
Episodes
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.
Ddol Bok rises to become a palace officer and changes his name to Kang Chae Yun in an attempt to get close to the king.
Assigned to investigate the recent murders, Chae Yun comes face to face with an assassin with superior skills to match his own.
A series of murders during the reign of King Sejong leads investigator Kang Chae Yoon to discover a grand conspiracy involving a group of geniuses willing to risk their lives for a cause.