Jet Li plays Tsui Chik, a former test subject of a project to create super-soldiers, impervious to pain and trained to stop at nothing to complete there missions. But he is forced to escape with his comrades after the project was suddenly cancelled and most of his squad killed. Now he is trying to have a quiet life as a librarian with a Hong Kong cop as his best friend. However, a string of vicious gangland murders begin that have all the markings of his former compatriots and realising that the police are helpless to fight these soldiers, Tsui Chik decides to take them on donning a mask to protect his identity and he soon becomes known only as The Black Mask.