Police Cadet

Chang Wei-chieh and Lin Chih-chuan take Chi-shun out. Seeing Chen Pao assault Li Wen-kao, they pursue Chen and accidentally hurt passer-by Yeh Chiao-yi, but Chen flees. Then, finding Chi-shuo missing, Wei-chieh becomes jumpy. Chiao-yi coming upon Chi-shuo takes care of him. Passing through, Chang Fu-cheng and Li Li-mei take Chiao-yi for an abductor and reprimand her. The misunderstanding is subsequently cleared, but Chiao-yi remains resentful. Accompanied by Wei-chieh, Chiao-yi returns home to find it locked. Wei-chieh offers to dine with her. Wei-chieh also hands her a cake originally bought for Hsu Chiu-ping and this canes as a pleasant surprise to her who is having her 18th birthday. Wei-chieh becomes emotional when Chiu-ping asks him about his marriage with Shih Yung-chih. Together with Yeh Chang-hua, Chiao-yi attends Chiu-ping’s birthday party arranged by Wei-chieh. On finding his identity, she becomes attached to him.… ...

Senior inspector CHEUNG WAI-KIT breaks into a crime ring and successfully arrests the robbers. Exhausted after the work, he stays home to rest while his wife HAU-YEE goes to the beach, accompanied by his sister KA- MAN. LAM CHI-CHUEN, a persistent open admirer of KA-MAN, follows them. An accident causes HAU-YEE to fall into the sea while KA-MAN and CHI- CHUEN panic over her disappearance. She has been taken to hospital by. a rich playboy CHEUK YIU-CHO. After the incident, HAU-YEE observes that CHEUK often hangs around her flower shop, and suspects that she is his target. Sunny, an assistant in HAU-YEE's flower shop, is found dying of sex torture. CHEUK invites HAU-YEE and CHI-KIT to attend a party. He makes a pass on CHI-KIT and invites him to bed.

Dismayed at such perverse behaviour, CHI-KIT identifies himself as a police. He begins to be suspicious of YIU-CHO. Not for long, he has found out that he is the murderer of Sunny. Arrested, YIU-CHO tries to threaten WAI-KIT of revealing the names of social celebrities and VIPS of whoring. WAI-KIT pays no heed to his threats. YIU-CHO learns from his father CHEUK SAU-YIN, a rich businessman and a triad leader that he will be prosecuted. Fearful of his imminent ruination, he commits suicide in the custody centre. SAU-YIN savagely blames his son's degradation and death to a follower called maniac GAU. He orders CHAN YIM-KWAN, his right hand, to have his son avenged. A police stoolie TAM CHO learns of the news of revenge.

WAI-KIT collects information from stoolie TAM-CHO. He attempts to arrest HAU, but does not succeed. CHI-CHUEN learns with dismay about KA-MAN's migrating to the States. He decides to apply for immigration too. Touched by his sincerity, KA-MAN finally agrees to let him go with her. TAM CHO is sent to hospital for treatment of an injury. His son TZE-WAH visits him there, and mistaken WAI-KIT to be the bad guy. WAI-KIT is told details about a transaction where GAU would obtain guns. He goes for the arrest but is overpowered by the gangsters.

Another senior inspector WONG AH-TING comes to WAI-KIT's rescue. He is annoyed that WAI-KIT has upset his plan of arresting the gangsters. WAI-KIT joins the Organized Serious Crime Group. His colleagues all cheer him in the celebration feast. But his relation with AH-TING grows worse. Stoolie TAM CHO informs WAI-KIT the whereabouts of HAU. In escaping arrest, GAU leaves behind the boat's license he uses for escaping to Macau. WAI-KIT sees CHI-WAH picking up the license and suspects he is involved.

After questioning, WAI-KIT believes CHI-WAH is innocent and has him released. GAU's case is then transferred to AH-TING, at the suggestion of the police director. GAU seeks out CHI-WAH to get back the boat's license. CHI-WAH is injured and is saved by a woman of the underworld, TIN YEE-LING. TIN suggests CHI-WAH to seek help from YIM-KWAN. CHI-WAH is put in an empty house., not knowing that YIM-KWAN means to use him to get GAU. At this time, the desperate GAU also seeks help from YIM-KWAN, who promises to help him escape, but secretly plans to kill him. TAM CHO tells CHI-KIT that his son CHI-WAH has disappeared. CHI-KIT advises him to talk to AH-TING.

YIM-KWAN arranges GAU to come across CHI-WAH in the empty house. The two start a hard fight in which CHI-WAH is injured. YIM-KWAN has his followers pursue GAU. GAU escapes to the car-repairing shop owned by an ex-underworld member BIN SHING. GAU is beaten to death there. BIN-SHING is questioned by AH-TING about GAU's death. Warned by YIM- KWAN, BINSHING keeps quiet about what he sees. CHI-WAH is alleged of killing GAU. TAM CHO finds out that BIN SHING knows the true story and goes to beg him to reveal it. BIN-SHING refuses him.