Ka Kui is accepted by the gang's leader (Ken Tsang), but his operation is jeopardized when Ka Kui's girlfriend (Maggie Cheung) accidentally reveals his true identity.With the help of another undercover agent (Michelle Yeoh), they travel to Hong Kong and join up with Panther's gang. 4K UHD - To infiltrate a drug cartel, police Inspector Chan Ka Kui (Jackie Chan) goes undercover in a Chinese prison. There, he earns the trust of Panther (Yuen Wah), a cartel member, by breaking him out of prison.

4K UHD - A lawyer (Jackie Chan) and his friends (Sammo Hung Kam-Bo, Yuen Biao) uncover illegal dealings at a Hong Kong chemical plant..

.With the help of another undercover agent (Michelle Yeoh), they travel to Hong Kong and join up with Panther's gang. There, he earns the trust of Panther (Yuen Wah), a cartel member, by breaking him out of prison.

Ka Kui is accepted by the gang's leader (Ken Tsang), but his operation is jeopardized when Ka Kui's girlfriend (Maggie Cheung) accidentally reveals his true identity. 4K UHD - To infiltrate a drug cartel, police Inspector Chan Ka Kui (Jackie Chan) goes undercover in a Chinese prison.With the help of another undercover agent (Michelle Yeoh), they travel to Hong Kong and join up with Panther's gang..