While the Lung family is sending off the fifth and youngest son, Ka-chung (Max Mok), to study medicine in England, Tsui and Kui set a trap on Ka-yip to give Wolf a reason to capture Ka-yip and lures Lung out to a meeting with the other patriarchs of the four families at Wolf's wood factory in Cha Kwo Ling.

Lung arrives at Wolf's factory with his bodyguard, Po (Kent Cheng), while his brother-in-law, Sek (Lau Kar-wing), stays in the car.

At this time, Lung's eldest son, Ka-wai (Michael Miu), arrives and impulsively enters the factory followed by Sek, and beats some of Wolf's henchmen before Kui takes a knife and holds Lung in the neck, demanding Ka-wai and Sek to take off their pants.

After Wolf and his gang leaves, the Taoist prayers at the funeral stop their chants before pulling out automatic weapons and massacring the funeral parlour while Wolf's underling, Bill (Shing Fui-On), also enters through the back door and shoots at Lung's corpse before Ka-wai tackles him and stabs him in the neck during a struggle.

Back in Hong Kong, Ka-chung and Allan tail Tsui, who is running for district council, taking photos of him hoping to find an opportunity to kill him, before reuniting with Ka-wah, who is working as a pimp to support his mother.

After paying respects to their mother in front of her tombstone, Ka-wah, Ka-chung and Allan capture and beat up Kui at a bar and force him to bring them to Tsui.

As the three reach the upper floor, they are held at gunpoint by Tsui and more henchmen and forced to drop their guns before Ka-wah fires a shotgun hidden in his pants.

After Ka-wah kills the henchman, he helps Ka-chung fight off Tsui before Allan brings in a bottle of alcohol with a flaming piece of fabric.