Park Joon Mo is a police officer. For a drug investigation that leads into the drug trade between South Korea, China, and Japan, Park Joon Mo infiltrates a criminal organization. Meanwhile, Park Joon Mo is married to Yoo Ui Jung. She is also a police officer and becomes involved in the drug investigation that her husband is working on. Appearing by them is Jung Ki Cheol. He is the charismatic boss of a newly formed crime organization. (Source: AsianWiki)Edit Translation