The film starts with a brief recollection of the "Killing Angel", a dangerous assassin that has been operating in most of southeast Asia. The Killing Angel has no known accomplices or colleagues, is not affiliated with any government, religious, or criminal organization, and to this date their true identity has still remained secret. The Killing Angel is believed to be responsible for 6 murders in the past year alone, with only one thing connecting each of the assassinations - all the victims were criminals and deserved to die.Then the movie quickly moves on to the Killing Angel's most recent killing, the well-publicized assassination of a notorious ex-yakuza crime boss. Working swiftly, the Killing Angel is able to overcome the criminal's defense systems, quickly incapacitating the boss's bodyguards and isolating his target. In a fit of desperation, the crime boss promises to triple whatever fee the Killing Angel is being paid to kill him, then goes on to warn the vigilante that there is a massive revenge fund set to avenge his killing. Ignoring his pleas, the Killing Angel silently kills the crime boss.The scene then switches over to the story of Fu (Jet Li), a small-town gang member who lives an extremely simple and modest lifestyle, albeit being a contract killer. It is revealed that Fu is very kind and has trouble killing innocent people, a trait that causes him to be disliked by the other low-rent triad members. When Fu's boss reveals that there is now a $100 million US bounty on the Killing Angel's head for the slaying of the yakuza boss, Fu is quick to volunteer for the job, but is instead insulted.Fu then attempts to enter the building where the crime boss's lawyers are discussing the terms for the revenge fund, but is detained at the entrance and ushered out by security guards. In a surprisingly quick sequence, Fu defends himself by rapidly incapacitating each of the guards. His lightning-swift martial arts skills draw the attention of Ngok Lo, played by Eric Tsang, a seedy contract booker and loan shark, who comes to Fu's aid by pretending that he is an agent and Fu is his actor. Thanks to Lo's smooth talking, the pair is able to sidle into the meeting.The meeting however, comes to a halt when government agents, led by detective Chan (Simon Yam), raid the building in search of known criminals who are meeting there. Chan, a leading detective, has been working tirelessly to expose the Killing Angel's true identity for years. The movie then switches over to another sequence, where the character of Eiji Tsukamoto, the slain crime boss's grandson, played by Renji Sato, is introduced. Tsukamoto, fed up with his grandfather's cowardice in life, now seeks his grandfather's power in death. Tsukamoto consumes a portion of his grandfather's cremated ashes, an act that causes the deceased lord's top aid to call him insane, but now all of the family's agents and gang members serve Tsukamoto as their new master.Fu and Lo get to know each other - Fu is an ex-soldier from mainland China, part of a special, world-famous unit known as the "Golden Soldiers". When Lo asks for a demonstration of Fu's skills, he is able to rapidly take down several ruffians simultaneously, but falters when he is confronted by a woman. Lo then explains the deal with Fu, and they head for an amusement park to assassinate the first person believed to be the Killing Angel. However, when they get there, it is revealed their target is a simple family man, and instead of killing him, Fu saves his life by killing his other assassins, the low-rank triad members he formerly lived with.Fu and Lo are then arrested, but they are bailed out by Lo's daughter, Kiki (Gigi Leung), an intelligent and successful lawyer fed up with her father's scandalous ways and criminal connections. Fu moves in with Lo now that he has no place to stay, and they quickly become friends, Lo claiming he used to be an infamous hitman known
Output: Who does Agent 47 work for?