Ethan Ye, King of the Wolf Fang Mercenary Group, returns to China to repay the upbringing of his adoptive father Yang Jianguo. His adoptive father is severely beaten by real estate tycoon Derek Zeng. Ethan Ye is determined to get justice. Derek Zeng colludes with Victor Wei, an arms smuggling tycoon, and sends the Seven Killers assassin organization to ambush Ethan Ye.
