There are two gangs in the Triad organization, they are sinister big brother Hung and decides to go into the right way Cheung Yee. The special action team member Lee Ching Kwong’s best friend Law Tai Keung is a undercover detective, he gets enough evidence to demolish the big brother Hung organization, how pity his duty cannot be completed as he is died. In order to pay the revenge for his best friend, he initiatively requests the commander Ko to let him be a replacement. He uses the regular technique in the triad world to plunder Cheung Yee’s goods, it then be recruited by Cheung Yee as his heroic performance. Lee is then have a chance to collect more evidence and figure out the real instigator is big brother Hung. The commander Ko assigns someone to trace with Lee, and know that Cheung Yee would like to have a smuggling plan before his retirement, he then led the person to capture him, only Cheung Yee can escape, Cheung wonder he is betrayed by Lee, since Lee is busy with mingling in the big brother Hung’s organization, Cheung Yee is then become an obstacle for their relationship, and makes him in a crisis-ridden position. How’s Lee going to do……