Many people ran to Hong Kong in the early days of PRC. Two young brothers got to Hong Kong almost at the same time. The two kids was bullied by local ruffians at the wharf day after day until they joined the Chaozhou gang and became the boss's foster sons. They began to operate some business for the boss. The two grow up and are not satisfied with the business any more. The elder invests on publishing business, gets rich and becomes chairman of a publishing group. The younger steps into drug business and becomes a gang boss. Along with their thriving business, the ICAC is established. Everything takes a sudden turn and becomes worse rapidly.