After the King of Special Forces died on a mission, he traveled back to Hong Kong in the 1970s and became a young and Dangerous young man. With the blessing of the system, he can obtain skills and resources by completing specific tasks. Wang Jin became life-and-death brothers with four young and Dangerous young men with different backgrounds. They started to build their own power from fighting on the streets. They used future knowledge to gradually legalize the gang industry and get involved in real estate and entertainment. Leye finally seized the opportunity of the Internet and launched a dual battle between business and underworld with systematic opponents. He experienced many life-and-death crises and betrayals. From arcade games to live streaming, he accurately grasped the trends of the times every time, and finally established a transnational business group. He struggled between patriotism and gangster identity, and finally found a balance point and became a representative of patriotic businessmen.