Ngoc Minh Quan, a Chinese-Vietnamese-British
widower,
Vietnam War veteran, and former special forces operator, runs a Chinese restaurant in
London. He lost two daughters to pirates when he
escaped Vietnam, and his wife died when his daughter, Fan, was born. Fan and 11 other people are killed in a terrorist bombing in
Knightsbridge; an
IRA splinter group dubbing itself the "Authentic IRA" claims responsibility. Quan visits
Scotland Yard daily for information and offers Commander Bromley £20,000 for the names of the bombers. Though sympathetic, Bromley tells him he is hindering the investigation. Quan leaves the restaurant with his friend and partner, Lam, and travels to
Belfast to meet
deputy First Minister of Northern Ireland and
Sinn Féin political advisor Liam Hennessy, a former
Provisional IRA leader who has renounced violence. Quan demands the names of the bombers, but Hennessy denies any knowledge, so Quan sets off a homemade bomb in Hennessy's building and leaves a fake explosive on Hennessy's car as a warning. Hennessy orders IRA weapons dumps searched for missing
Semtex and tells his right-hand man, Jim Kavanagh, to get Quan out of the city. Hennessy's men track Quan, but he fights them off and escapes. Later, Quan photographs Hennessy kissing his mistress, Maggie Dunn, and threatens to
blackmail him. Hennessy enlists his nephew Sean Morrison, a former
Royal Irish Regiment soldier and skilled tracker, to meet with Bromley. Morrison tells Bromley that each IRA cell will change code words to identify the rogue bombers; Bromley agrees to assist on condition that the British take them out, not the IRA. Quan follows Hennessy to his farmhouse and attacks it with more bombs. As Hennessy's men search for him, Quan maims them with traps before he is wounded by Kavanagh, forcing him to flee. Hennessy's former IRA commander, Hugh McGrath, confronts him about the searches, accusing Hennessy of caring more about his position within the British government than the IRA's cause. Soon after, Quan also confronts Hennessy, threatening him and giving him 24 hours to reveal the names of the bombers. A
double-decker bus is blown up in London, killing 16 more people, but no code word is given, creating distrust between Hennessy and Bromley. Bromley notifies Hennessy that they have discovered the bomber's identity and tracked McGrath to his farm. Bromley threatens to raid the farm unless Hennessy forces McGrath to reveal who and where the terrorists are. Hennessy tortures McGrath and gets the names, including his mistress Maggie, whose real name is Sara McKay. Hennessy learns that his own wife, Mary, masterminded the attacks because her brother was murdered by a
UVF death squad. She hates both the British and her husband for allowing his killers to be jailed rather than executed. Hennessy kills McGrath and shares the information with Morrison. Morrison finds Quan's hideout, but Quan subdues him and gets the names of the killers and their location. After Morrison is released and returns to the farm, Hennessy reprimands him for unintentionally leaking information to Mary, with whom he is having an affair, and orders him to bury McGrath's body. Quan enters the bombers' London flat disguised as a gasman. He kills all of them except Sara, who is wounded in the scuffle. Quan escapes just before
MI5 and
SO15 storms the flat. They torture Sara into disclosing the location of the next bomb, which is planted in a reporter's laptop to be detonated on a plane carrying British dignitaries to a conference.
Airport police locate the reporter and throw the laptop into an
air bridge, which explodes without any casualties. McKay is executed to tie up loose ends. British
cabinet minister Katherine Davies, who was scheduled to be on the targeted flight, calls Hennessy to tell him she knows of his involvement, but having helped prevent the attack, he can remain as deputy First Minister, albeit under her control. Meanwhile, Morrison kills Mary, effectively eliminating the terrorist cell. Quan confronts Hennessy with a picture showing him kissing Maggie. He forces Hennessy to post the photo online, publicizing his links to the terrorists. Quan returns to the restaurant and reunites with Lam. Realizing Quan's role, Bromley decides not to take further action against Quan and keeps him under surveillance for the time being. ==Cast==