An unexpected setback in Sangju poses new problems for Prince Chang and the others. Seo-bi and Cho Beom-pal seek safety with Cho Hak-ju.
After Prince Chang breaks into Mungyeong Saejae, a nightmare unfolds. Officials search the queen's home, suspecting she is hiding something.
When Cho Hak-ju is taken from his custody, Prince Chang goes after him. Seo-bi looks for a way to treat the disease. The queen awaits her prince.
Seo-bi shares a critical discovery with Prince Chang, who has a favor to ask of her. Cho Hak-ju visits the queen and demands she tell him the truth.
To save innocent lives, Prince Chang and his men take over Hanyang. The queen determines that if she can't have the throne, no one can.
With the palace painted red with blood, Prince Chang is forced to pursue a risky strategy. Seo-bi takes the baby and hides.