Cheung Sung-bong is a highly respected cop with a long history of success in dangerous cases. However, his past soon comes back to haunt him when a former protégé resurfaces, seeking revenge.
Chris Collins is a former US Marine based in Hong Kong. He runs a martial arts school in Hong Kong and has affiliates worldwide. He is an actor and action director under SUN Entertainment. His tutelage in the industry is from Sammo Hung, Nicky Li and Donnie Yen.