In this action-packed installment of the Police Story series, Hong Kong police officer Chan Ka-Kui (Jackie Chan), also known as Kevin Chan, is recruited for an undercover mission. Working with Interpol, he is tasked with infiltrating a dangerous drug cartel led by the notorious crime boss Chaibat (Kenneth Tsang). To do this, Chan partners with tough and skilled Chinese police inspector Jessica Yang (Michelle Yeoh), and together, they devise a plan to gain the trust of the cartel.
Chan and Yang pose as a married couple and stage a daring prison breakout to help Panther (Yuen Wah), one of Chaibat’s key henchmen, escape. This act earns them Panther’s trust, and they are introduced to Chaibatโs inner circle. As they gather evidence, they face increasing dangers, including Chaibatโs suspicion and the cartelโs violent operations. The duo must carefully balance their undercover roles while protecting innocent lives.
The mission intensifies when Chaibat plans to rescue his wife, who holds critical information, from a high-security prison. Chan and Yang find themselves deeply involved in the operation, risking exposure. The film showcases jaw-dropping stunts and fight sequences, including rooftop chases, high-speed motorcycle scenes, and explosive confrontations, as Chan and Yang battle the cartelโs forces.
The mission culminates in a breathtaking finale involving a helicopter chase and a high-octane showdown on a moving train. Chan and Yang manage to outwit Chaibat and his men, bringing them to justice. The film concludes with Chan returning to Hong Kong, his mission successfully completed, and Yang earning respect for her bravery and skill.