When Dr. Heo comes back to the modern world, he makes up his mind to lead a different life. Despite Yeon Kyung's efforts to cheer him up, he acts cold towards her. He is determined to take advantage of his skills now so that he won't be treated the way he was in Joseon.

Dr. Heo finds Kkot Bun fallen unconscious outside. The thought of losing her reminds him of his late mother, and he desperately asks for Yeon Kyung's help. During a team dinner, Jae Ha questions Dr. Heo's identity. Meanwhile, Ha Ra gets sent to the hospital.

After getting hit by a truck, Dr. Heo and Yeon Kyung find themselves back in Joseon. Soon after that, Japanese soldiers come and attack the village nearby. The soldiers take Yeon Kyung hostage, and Dr. Heo must do something for them in order to save her.