What Kind of Doctor Is He? - S1.E4

Yeon Kyung and Dr. Heo are back in Hanyang, and they have to figure out what caused them to travel time. Dr. Heo goes back to Haeminseo to figure out what had been going on while he was gone. Yeon Kyung learns that Dr. Heo is not as honorable as he seemed. While trying to find a way back to Seoul, Dr. Heo gets chased by people who have grudges against him.