My Father is a Hero

Wei agrees to join Po's gang because he is assigned as a police infiltrator to spy on the Hong Kong terrorists. His mission requires him to become an insider in the criminal organization. By partnering with Darkie and participating in the gang's operations, Wei gains Po's trust while working to gather evidence and prevent the terrorist activities from succeeding.

Wei mentions his worries about his sick wife before taking on the dangerous assignment, hinting at the personal toll his duty will exact.

Wei volunteers to wear the bomb-laden vest as part of a risky ruse to steal the bombs while keeping the money in Po's hands. The vest makes him the ultimate decoy during the arms deal, allowing him to get close to the weapons without raising suspicion. This dangerous gambit maintains his cover within the gang while enabling him to manipulate the operation from inside.

Earlier, Wei partnered with Darkie and demonstrated his willingness to take risks to maintain his cover.

Fong discovers Wei's true identity by using a photo taken of him before the arms deal. She travels to Beijing and befriends the Wei family, gradually deducing that Wei is actually a police officer rather than a criminal. During her time with them, she learns about Wei's background and confirms her suspicions through conversations with his family.

Fong took the photo during the arms deal operation, which becomes her key evidence.

Mrs. Wei dies from a severe asthma attack. She has suffered from severe asthma throughout the story, and the stress of her husband's dangerous undercover mission, combined with the lack of immediate medical assistance, proves fatal. Before dying, she entrusts Fong with a letter for Wei and asks her to look after their son Ku.

Wei's worry about his sick wife is mentioned at the start of the mission, establishing her health condition as a vulnerability.

Ku runs away from Fong's apartment after spotting a police cruiser outside. Filled with fear after seeing law enforcement, Ku panics and escapes through a window, only to be captured by Po. This incident occurs because Cheng filed a missing person report on Ku, drawing police attention to the area and frightening the boy.

Cheng filed the missing case against Fong's wishes, which directly leads to police presence near Fong's apartment.

Darkie dies from wounds sustained when Po and his men raid his houseboat searching for Ku. Despite being mortally wounded, Darkie hides Ku from Po and protects him. Before dying, Darkie tells Ku about Po's bomb plan at the antique auction and gives Ku a mobile phone to contact Wei. Darkie's loyalty stems from his partnership with Wei and his genuine affection for the boy.

Darkie had previously worked with Wei and formed a bond with him during their criminal operations.

Po plans to rob the wealthy attendees at the antique auction. He orders six bombs to be planted at the event, using them as leverage to control the crowd and execute the heist. The gang is equipped with tonfas instead of firearms and holds tickets to access the exclusive on-board areas, allowing them to carry out the operation undetected until Wei and Ku intervene.

Po's criminal nature and previous arms dealing established his willingness to commit violent robberies.

Ku uses a breathing exercise from his martial arts training to delay the effects of Po's chokehold. This technique buys enough time for Fong to shoot Po aboard the helicopter. Ku's martial arts training, which was established earlier in the story, proves crucial in this life-or-death moment.

Ku is introduced as a martial arts student at the beginning of the film.

Fong shoots Po to save Ku from being choked to death. When Po snatches Ku and begins choking him, Ku uses his breathing exercise to delay suffocation long enough for Fong to take aim and shoot Po from a distance. This intervention occurs aboard the helicopter during the chaotic final confrontation.

Fong had already shown willingness to sacrifice herself as a hostage exchange earlier in the film.

Wei survives by breaking free from the chain Po pinned him with just as the helicopter carries Fong and an unconscious Ku away. In the tense sequence, Wei manages to overcome Po and escape the blast radius moments before the final bomb explodes. He then reunites with Fong and Ku, surviving what appears to be a fatal situation.

Wei demonstrates resourcefulness and combat skills throughout the film, fitting his trained police officer background.

Po deduces Wei's identity as a cop when he observes Wei's superior fighting skills compared to the rest of his crew. During the rescue attempt at his penthouse, Wei's exceptional combat abilities and tactical thinking reveal his true background as a trained police officer rather than a typical gang member.

Wei consistently demonstrates higher skill levels than other gang members throughout the operations.

Inspector Cheng files the missing person report on Ku against Fong's wishes, believing it to be the proper procedure. This action attracts media attention and creates complications in the investigation. The public spectacle strains Cheng's relationship with Fong, who wanted a more discreet approach to protect Ku and the investigation.

Fong specifically asked Anne and Ku to travel by speed boat to Hong Kong, indicating she preferred keeping things quiet.