Huo Gang, the former uncrowned king of underground boxing, retired due to serious injuries in a rigged match and has since disappeared. Five years later, he became a taciturn driver, just to raise the high cost of surgery for his seriously ill sister. However, fate did not let him go. When his sister's attending doctor suddenly stopped taking medicine, and when debt collectors blocked the door of his home, Huo Gang understood that his way out was gone. For the sake of his loved ones, this sleeping beast was forced to put on his gloves again and step into the underground world full of blood and conspiracy. This time, there is no referee, no rules, just life and death. Facing the man behind the underground gambling, Huo Gang will use a pair of iron fists to smash the dark rules of man-eating and create a bloody path to the light!
