Upon hearing news of Bee's death, Chicken returns to Hong Kong and helps best friends Chan Ho Nam (Ekin Cheng), Dai Tin-yee (Michael Tse) and K.K.

The second part of the movie deals with returning Hung Hing Chairman Chiang Tin Sang (Simon Yam) trying to ally with San Luen and promote relationships, while trying to find a replacement branch leader of Causeway Bay, a position Bee held.

During a visit back to Taiwan to see and thank the senator personally for helping them get rid of Kwan, Ho Nam and Chicken find him dead and are accused by San Luen of killing him.

In a tense Mexican standoff at the town square, the senator's mistress and Tai Fei decides to settle things with Ho Nam and Chicken, summoning hundreds of San Luen and Hung Hing members.

While it appears that victory is in the mistress' hands, Tai Fei turns on her: it was all a ploy on Hung Hing's part for him to ally with San Luen and provide a means to weed out any corrupt members in the Taiwanese secret society.