Ting Hai (Adam Cheng) accidentally killed his long-time friend Fong Tsun Sun (Lau Chung Yan) and left Sun's four children to sun's fiancee Law Wai Ling (Nam Kit Ying). Fong Chin Pok (Lau Ching Wan), the eldest son of Sun, vowed revenge for his father. Years later, Ting Hao Hai (Siu Chung Hang) and Ting Lei Hai (Dao Tai Yu) managed to grow powerful in triads. Stifled by feuds, the three sisters, Fong Fong (Ng Wing Hung), Fong Ting (Lee Lai Chun) and Fong Man (Yeung Ling), were forced to pay the high price in the battle. Meanwhile, Hai became wealthier and wealthier. He was busy grabbing money in the stock market. On the other hand, Pok, by working with veteran drug dealer Chow Chai Sun (Lau Kong) and retired inspector Lung Bon (Tsang Kong), his intimate Yuen Mui (Vivian Chow), Bon's daughter Lung Kei Man (Amy Kwok) and Ting's best friend Chan To To (Bowie Lam), intended to turn the arena into the killing field...