Ji Chang-wook

Mild-mannered Tae-jung is wrongfully imprisoned for a heinous crime. He soon discovers that a mysterious figure named Yo-han orchestrated his downfall. Fueled by vengeance, Tae-jung sets out to make Yo-han pay.

Set in the 1980s, follows undercover police investigators who infiltrate a massive criminal organization responsible for the illegal drug trade between Korea, China, and Japan.