Secret Door - Season 1
1 - Episode 1
Air Date: September 22, 2014
A document, thought long destroyed, tying King Yeongjo's ascension the throne to the Noron Faction, resurfaces. Crown Prince Sado distrupts the government by proclaiming the creation and distribution of books by commoners legal.
2 - Episode 2
Air Date: September 23, 2014
Heung Bok's body is found and the conspiracy to cover-up his murder begins.
3 - Episode 3
Air Date: September 29, 2014
Unsatisfied with the result of the investigation into Heung Bok's death, Crown Prince Sado re-opens the case, personally heading it himself.
4 - Episode 4
Air Date: September 30, 2014
Prince Sado succumbs to all evidence painting Heung Bok as a traitor, that is until Ji Dam approaches him with proof to the contrary.
5 - Episode 5
Air Date: October 6, 2014
With Ji Dam's help, Prince Sado delves deeper into the conspiracy behind Heung Bok's death.
6 - Episode 6
Air Date: October 7, 2014
Ji Dam hides out in a brothel while Prince Sado discovers the meaning behind Jung Woon's dying message.
7 - Episode 7
Air Date: October 13, 2014
Prince Sado seeks out the identity of the man Heung Bok's final royal painting.
8 - Episode 8
Air Date: October 14, 2014
An investigation into yet another death leads Prince Sado to suspect one of the people he trusts most.
9 - Episode 9
Air Date: October 20, 2014
Prince Sado is accused of murder.
10 - Episode 10
Air Date: October 21, 2014
Teacher Park Moon Soo makes a deal to try and save Prince Sado from prison.
11 - Episode 11
Air Date: October 27, 2014
Prince Sado becomes suspicious of his father's role in the document.
12 - Episode 12
Air Date: October 28, 2014
King Yeongjo appoints a new Prime Minister and sets out to enact new tax reforms while Prince Sado struggles with what to do about his father.
13 - Episode 13
Air Date: November 3, 2014
King Yeongjo unleashes his punishment on the booklenders.
14 - Episode 14
Air Date: November 4, 2014
King Yeongjo strips Prince Sado of all governing power. Three years later, Prince Sado begins a secret plan beginning with taking Kim Taek as his new teacher.
15 - Episode 15
Air Date: November 10, 2014
In order to get his governing powers back, Prince Sado begins difficult negotiations with the Qing.
16 - Episode 16
Air Date: November 11, 2014
Kim Taek sets a plan in motion to oust and replace Prince Sado.
17 - Episode 17
Air Date: November 17, 2014
Prince Sado returns to the regency and sets out to make the country a better place for all classes.
18 - Episode 18
Air Date: November 18, 2014
King Yeongjo and Prince Sado clash over allowing commoners entrance to the civil service exam.
19 - Episode 19
Air Date: November 24, 2014
Prince Sado faces the fallout of allowing commoners take the civil service exam.
20 - Episode 20
Air Date: November 25, 2014
The Noron set a new plan in motion to oust the Crown Prince.
21 - Episode 21
Air Date: December 1, 2014
On the eve of the new Queen announcement ceremony, the Prince discovers a plot to assassinate the King.
22 - Episode 22
Air Date: December 2, 2014
The Noron set out to discover why the Prince has been sending funds to the North.
23 - Episode 23
Air Date: December 8, 2014
24 - Episode 24
Air Date: December 9, 2014