Episode 1
Episode: 1x01 | Airdate: Oct 5, 2011
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.
Episode: 1x01 | Airdate: Oct 5, 2011
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.
Episode: 1x02 | Airdate: Oct 6, 2011
Sejong's small act of defiance leads to a massacre, and an unimaginable request from his father.
Episode: 1x03 | Airdate: Oct 12, 2011
Sejong and his father engage in a battle of the wits as young Ddol Bok struggles to survive in the Slaves' Quarters.
Episode: 1x04 | Airdate: Oct 13, 2011
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.
Episode: 1x05 | Airdate: Oct 19, 2011
Assigned to investigate the recent murders, Chae Yun comes face to face with an assassin with superior skills to match his own.
Episode: 1x06 | Airdate: Oct 20, 2011
Sejong breaks down at the death of another scholar, and he is the only one who holds the key to the scholar's last message.
Episode: 1x07 | Airdate: Oct 26, 2011
Shim Jong Su gathers up allies for Hidden Root and plots the assassination for one more scholar.
Episode: 1x08 | Airdate: Oct 27, 2011
Chae Yun discovers the identity of the assassin as Sejong battles his inner demons, and second guesses his mission.
Episode: 1x09 | Airdate: Nov 2, 2011
Hidden motives are revealed as different officials spring to action at the news of Hidden Root's resurrection. Sejong's mission is revealed.
Episode: 1x10 | Airdate: Nov 3, 2011
Chae Yun becomes suspicious of a supposed death threat against another scholar. Hidden Root leader Jung Gi Joon's whereabouts are finally revealed.
Episode: 1x11 | Airdate: Nov 9, 2011
King Sejong forms a closer bond with an enemy, and opts for a scientific dissection in the hopes of helping So Yi speak again.
Episode: 1x12 | Airdate: Nov 10, 2011
The destinies of So Yi and Chae Yun collide as both slowly discover each other's former's identities.
Episode: 1x13 | Airdate: Nov 16, 2011
The king bids So Yi and Chae Yun the freedom to start over their lies together, but both of them can't forget their paths.
Episode: 1x14 | Airdate: Nov 17, 2011
The bureaucrats put greater pressure on the king to reveal his work on the alphabet, but it leads to violent results.
Episode: 1x15 | Airdate: Nov 23, 2011
In the process of saving So Yi, Chae Yun kidnaps the Prince and finds out about King Sejong's secret work.
Episode: 1x16 | Airdate: Nov 24, 2011
With news leaking of the new alphabet, Sejong wages an intellectual war with the scholars and bureaucrats. Chae Yun becomes a double agent.
Episode: 1x17 | Airdate: Nov 30, 2011
The furor over an alphabet that will lead to educated peasants leads to a young scholar's suicide.
Episode: 1x18 | Airdate: Dec 1, 2011
Chae Yun's mentor makes an appearance, and is immediately recruited by both Hidden Root and Sejong for his help.
Episode: 1x19 | Airdate: Dec 7, 2011
Now that Sejong discovers Ga Ri On's true identity, the stakes are raised when a prince's life is on the line.
Episode: 1x20 | Airdate: Dec 8, 2011
The death of Gwang Pyung puts Sejong over the brink of sanity, and the bureaucrats fear that he will become a tyrant like his father was.
Episode: 1x21 | Airdate: Dec 14, 2011
Sent out to the countryside to distribute the letters, So Yi and the other court maidens don't realize the danger lurking at their heels.
Episode: 1x22 | Airdate: Dec 15, 2011
Hidden Root falls apart as traitors abound. Chae Yun goes on a desperate search to save So Yi.
Episode: 1x23 | Airdate: Dec 21, 2011
Desperate to know what the Solution is, Jung Gi Joon is willing to give up his position as a leader of Hidden Root in order to bring Sejong down.
Episode: 1x24 | Airdate: Dec 24, 2011
The final showdown begins as Jung Gi Joon readies for his assassination attempt against Sejong. So Yi struggles to pass down her knowledge of the Solution.