As King Go Nam-mu is out on the battlefield during Goguryeo’s war against Han Dynasty, Queen Woo Hee and Prime Minister Eulpaso occupy the palace in his absence. However, many begin to covet the royal power, and conspiracies among them begin to emerge. The conflict escalates as the King does not yet have an heir to the throne.

Upon returning from battle, King Go Nam-mu is poisoned and dies. The rumor of this unexpected event soon spreads, and those who seek power conspire. Meanwhile, Queen Woo Hee must protect herself without the King. So with the help of Moogol, she flees to meet the Third Prince.

As instructed, Queen Woo Hee visits the Third Prince to initiate the levirate marriage. However, upon seeing the consequences of his heinous actions, she concludes that the Third Prince is unworthy of any claim to power. Realizing the urgency, she escapes to avoid further complications. Meanwhile, those who have been biding their time sense that the moment has come to reclaim the throne they believe is rightfully theirs.

Word of the king's death travels in the ears of Yeon-bi of Jolbon. His passing gives rise to her ambitions of being the next queen. She travels fast to make the first move. Meanwhile, Queen Woo seeks refuge as groups of assassins close in on her.

Eul Pa So continues to list potential suspects who might be responsible for His Majesty’s death, ultimately concluding that the spy must be someone who knows of the king's demise. Meanwhile, the White Tigers draw closer to Queen Woo, coming within an arm's length of capturing her.