plan fails when Wilson intervenes. While in hospital, Sam agrees to testify in court against the three brothers. On the night of their mother's birthday, the brothers plan to recover their drug money, but as they are doing so, Archer is arrested by Hong Kong police, while Tony and Tiger discover that Wilson is a mole and attempt to get rid of him. While in court, Archer is forced to turn in all of his travel documents, which will prevent him from fleeing Hong Kong before his hearing. Three months later, Tiger and Tony brutally murder Sam along with several other witnesses and crime figures crucial to the police investigation. They attempt again to kill Wilson, delivering a bomb which kills inspector Wong and injures Wilson's pregnant girlfriend, Judy, but fails to harm Wilson. Tony and Tiger then disguise themselves as janitors to sneak into the hospital where he is being protected by the police. Ma and Tiger both end up in the same elevator and Tiger attempts to kill Wilson with a silenced pistol once he appears, but Ma is aware of him and at the last moment engages him in a fierce struggle. After being disarmed, Tiger attempts to escape, but Ma gives chase until he corners him at an outdoor restaurant. Tiger uses a little girl as a hostage and then severely injures her by throwing her through the air onto the concrete. Ma furiously engages him in combat and beats him to death in front of the crowd. Tony, having kidnapped Judy from the hospital, threatens to kill her if Wilson, now a sole witness, testifies in court. During the court hearing, Wilson refuses to testify, and the case is dismissed for lack of evidence. Wilson later attempts to rescue Judy, but is captured by Tony and his gang. Once Archer walks free, Ma captures him and calls Tony for an exchange of hostages, leading to a confrontation in an abandoned village. Ma rescues Wilson and Judy, then single-handedly takes on the remaining gangsters, killing most of them with his revolver and a commandeered sniper rifle. Wilson returns to assist him and helps to subdue Archer. Ma corners Tony and, having exhausted his ammunition, engages him in a grueling hand-to-hand fight, eventually strangling him to unconsciousness in order to finally arrest him. Cast Donnie Yen as Detective Sergeant Ma Jun Louis Koo as Wilson Collin Chou