Description: A surgeon treats a mysterious patient who has a human-shaped tumor in his head, only to discover himself time-travelling to the year 1861. Jin Hyuk (Song Seung-heon) is a gifted neurosurgeon who was born into a family of doctors. His success rate in surgery hovers at 100%, with his ability to quickly analyze any situation and extremely steady hands. Due to his personal pursuit of perfection, he has a cold attitude and lacks compassion. He is planning to give his girlfriend Yoo Mi-na (Park Min-young) a ring as a gift from their mother when after an argument, Mi-na gets into an car accident and goes into a coma. After surgically removing a foetus-shaped tumor from a patient's brain, a mysterious power causes Jin Hyuk to travel 150 years back in time to the year 1860 during the Joseon Dynasty, when medical technology was still in its infant stages. He begins treating people of the era, but the lack of necessary implements and rudimentary medical knowledge of the period forces him to develop medical devices and medicine by himself, and seek new ways to aid the sick. He meets young noblewoman Young-rae (who looks like Mi-na), who is betrothed to her childhood friend Kim Kyung-tak (Kim Jaejoong) but is not in love with him. Through this challenging process and with the help of Young-rae and Lee Ha-eung (Lee Beom-soo), Jin Hyuk becomes a true doctor. But his actions start interfering with history and Jin Hyuk is faced with hard choices.