The brothers Ayong (played by Alex Man) and Aguo (played by Andy Lau) wandered the streets of Hong Kong and took refuge with the underworld leader Ji Ge (played by Chow Yun-fat). Because Aguo was appreciated by Ji Ge, Ayong became jealous and a rift arose between the brothers. Ayong turned to Boss Chu, but Aguo went to Singapore to seek another livelihood. A few years later, Ayong became more powerful and killed Boss Chu to establish himself as the leader. He also planned to wipe out Ji Ge's gang. Ji Ge died and fled to Singapore alone to find Aguo. Ayong chased him step by step and killed Ji Ge's wife (played by Carina Lau) and children. At this moment, grief and anger prompted Aguo to come out again and return to Hong Kong with Ji Ge to fight to the death and avenge his hatred...