A group of rebels invades the palace, but the Crown Prince is nowhere to be seen. When the King finds out that he was outside without reporting to him, he and Queen Dowager decide to marry him off so he'd behave better. One day, a young court maid is found dead in a pond. She turns out to be a court maid of the Queen Dowager's chamber. The Crown Prince sneaks into the Queen Dowager's chamber to find out what happened in more detail, only to witness a hidden affair. 

The Crown Prince makes it out of the palace with Gap Seok's help, and they meet Myung Yoon, who is waiting outside the palace. Myung Yoon helps to heal the prince's stab wound. The King orders Prince Dosung to find out the owner of the needle canister. Meanwhile, Physician Heo Jin Soo is found dead in his house.