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.

When Dr. Heo finds himself back in Seoul, he realizes that he must go back to save Yeon Kyung. With Jae Ha's help, he is able to go back to Joseon. The two reunite and promise never to let go of each other ever again.