HEY dislikes LIN suspecting him of shielding KEUNG and resigns in rage. FAN and TI persuades time and again in vain but his wife, CHI, strongly supports him. Although LIN stops HEY from investigating the crimes of BULLET, HEY does not obey. KEUNG falls out with HEY because he does not want to testify against BULLET. CHI is in the dilemma. HEY thinks it does not fit him for being transferred to detect the triad penetration of schools. BULLET’S men blackmail owners whose flats are finished in undesirable conditions since his business is deeply affected by the police investigation. With the owners’ cooperation, the SQUAD successfully traps and charges BULLET as well as his men. FAN and HONG are investigating a case of student stealing letters and suspect SUM’S students taking part in it. The principal obstructs them to take further action. SUM dislikes what the principal does but she can do nothing about it.