Fist & Furious.

Looking for a new interesting story, VJ reporter Guk-hyun is fascinated with a story of a former detective Gi-man, living a life with a blade in his head for certain reason. Guk-hyun convinces Gi-man to take him upon condition that he make a record of Gi-man's revenge on Tae-hwa, the head of drug cartel. While searching for Tae-hwa's whereabouts, they decide to head towards unknown Island where Tae-hwa is expected to be staying.