Following his confrontation with the nefarious DOA company, Ken (Chow Yun Fat) is anticipating going back to loving his retirement. His rest has been cut suddenly short when his protégé Vincent (Shawn Yue), who is now employed by Interpol, wants Ken's help in taking down the real mastermind behind DOA, Aoi. Both mind to Thailand, at which DOA's former chief accountant Mark (Nick Cheung) has escaped along with his own daughter.