With Fai in prison, Fat Hoi was able to manipulate his boss into dealing with Thai drug lords and do big business. Seven years later, Ka-wah, who has a daughter, San-san, with Kiu, who is also pregnant with their second child, takes over the shipping company from Kiu's uncle due to the latter's ailing health. On the other hand, Fat Hoi has earned a fortune from drug trafficking becomes the main leader of Chung Sing Tong Gang and also owns a transportation company to traffick cocaine. However, Fat Hoi's advisor, So advises him to invest in some legitimate business since the British government is working on building an anti-corruption agency in Hong Kong and suggests him to hire mainland Chinese criminals to rob an armoured car to obtain funds, so Fat Hoi hires three thugs for the job, which one of them is Ka-wai. Afterwards, Fat Hoi's Thai business partner offers to smuggle HK$10 million worth of cocaine to Taiwan with him and wants to collaborate with Ka-wah's company, but Ka-wah refuses, so Fat Hoi goes to Keelung to negotiate with Ka-wah, who beats up his henchmen after they start a fight in his company and warns Fat Hoi to leave Taiwan within 24 hours. Fat Hoi then sends Ka-wai to Keelung and kidnap San-san, but he accidentally suffocates her to death while evading the police, leaving him in shock and feels very remorseful. Ka-wah then returns to Hong Kong to seek revenge on Fat Hoi while Kiu is in the hospital, soon to be ready to deliver their second child. Back in Hong Kong, Ka-wah notices Fai working as a window washer for Fat Hoi and become addicted to cocaine because the latter's henchmen in prison forced him to take the drug, and Ka-wah is determined to help him kick his addiction. However, Fat Hoi sends Ka-wai and a Vietnamese henchman (Dick Wei) to kill Ka-wah at Fai's hideout, where Fai is killed by the Vietnamese henchman, and Ka-wai eventually notices Ka-wah during the scuffle and kills the Vietnamese henchman instead. Ka-wah brings his brother back to his hotel room and sees Kiu, who witnessed and remembers Ka-wai as her daughter's kidnapper and killer, leaving Ka-wai feeling extreme guilt knowing he killed his own niece.