LUNG who has been smuggling government gold decides to entrust the business to TIN, which gives TIN a great thrill. During the delivery, TIN has accidentally left a bar of gold behind, which is later found and kept by CHOI. PO suggests to HUNG that they may hypnotize KAU, through which he may get his memories back. KAU seems to have recalled something but is extremely frightened by it. With the help of the gold bar found by CHOI, HUNG manages to smash TIN’s smuggling ring. YING and HUNG persuade TIN to turn away from crime but TIN doesn’t TATe their advice. TIN happens to mention KAU during his conversation with LUNG. LUNG seems to be pondering over something when he hears KAU’s name. LUNG and KAU used to be blood brothers. But LUNG was desperate for the kung fu book and sought to push KAU down the cliffs so that he would be the only one to own the book……