Avsnitt 4

UN suggests to divorce JOE. JOE slaps her. CHUNG finds that UN was hurt. He asks LIN to sue JOE. LIN refuses. CHUNG is very angry for LIN's sake. TAI and his mother prepare to buy a flat for marrying GRACE. However, GRACE proposes to separate with T AI. T AI is very disappointed. CHUNG questions GRACE the details. GRACE is pregnant and Dr. CHAN is the baby's father. T AI is calm though he is heart-broken . LAM confesses to CHUNG that he had once crashed a cop to death. CHUNG persuades him to confess. When LAM goes to the police station to confess, he found CHUNG and SUM are together. He then knows that CHUNG is a cop. He felt being cheated. Meanwhile, the B Section has already known that it was LAM's deed They are going to arrest LAM. CHUNG knows LAM's whereabouts. Thus he has to lead the B Section to arrest LAM.