Ma Seok-do works as a detective squad chief. His team struggles to bust a criminal ring who originally came from Yanbian, China and led by Jang Chen. Jang Chen (Yoon Kye-Sang) came from China and now works as a loan shark in a seedy Chinatown area of Seoul. He’s backed up by his bloodthirsty henchmen Wei Sung-Rak (Jin Seon-Kyu) and Yang-Tae (Kim Sung-Kyu). Jang Chen is beyond brutal in his methods to collect money. Meanwhile, Ma Suk-Do (Ma Dong-Seok) is a detective in the Chinatown area of Seoul. He tries to keep the peace, while two Chinese-Korean gangs battle over turf in the neighborhood. Jang Chen makes his move to take over.