From Harbin, the well-known "Mafia faction" gathered a large number of migrant workers and illegal immigrants of ethnic origin in China. In 2004, the Maochen invaded the country for the first time, and it was a new criminal organization headed by Chen Chen (Yin Kaixiang). Chen Chen has always been known as an unscrupulous and unscrupulous group, quickly threatening the original strength of various regions and hoping to dominate the country. At the first moment, he was caught in a blackmail panic, and at this time, under the name of a fist, a police officer who could deal with a whole area of criminals in a single day, the police officer who had been invaded by underground forces, launched a special campaign and vowed to send a blackmail to give them the happiest one.