Tập 1

CHUNG SHUN và CHUNG YI là thành viên của Big Circle Gang. Họ làm việc với MING để đối phó với KIN NAM. Trong hỗn loạn, họ giết một người đàn ông say rượu. NGOR là thư ký của WONG. Cô ấy chăm sóc mọi người trong đồn cảnh sát YUEN và FAT nhìn thấy xác chết của người đàn ông say rượu khi họ đang tuần tra. SAN kiểm tra thi thể và xác định loại súng được sử dụng để giết người đàn ông. YUEN thích công việc của cô ấy nhưng gia đình cô ấy lo lắng nhiều về cô ấy. YUEN nghi ngờ CHUNG SHUN VÀ CHUNG YI. Cô ấy kiểm tra chứng minh thư của họ. Họ bỏ chạy và họ có một cuộc đấu súng trên thị trường. YUEN phải được điều tra. Cô gặp CHING FUNG. FUNG đặt một cái bẫy để bắt CHUNG SHUN và CHUNG YI. Tuy nhiên, kế hoạch của anh ta bị phá hỏng bởi YUEN, người đến để bắt giữ họ. Họ lại có một cuộc đấu súng nữa.

Tập 2

YUEN bắn vào CHUNG Yi và làm tổn thương anh ta. CHUNG SHUN phải để CHUNG YI và trốn thoát một mình. YUEN phải được chuyển sang công việc giáo sĩ và được tư vấn thêm. Cô ấy làm việc với NGOR và họ trở thành bạn bè. WING CHOI đến Bắc Kinh để kinh doanh. NGOR không thể làm việc nhà đúng cách. Trong một chiếc xe buýt, NGOR và SAN lấy nhầm túi của những người khác. Mặc dù họ có thể lấy lại túi của mình nhưng họ đã để lại ấn tượng xấu với nhau. Vì có một mất điện trong nhà, NGOR đưa KA LOK đến nhà WONG để tìm chỗ ở tạm thời. Cuối cùng, cả CHUNG SHUN và CHUNG YI đều bị bắt khi CHUNG SHUN quay lại gặp CHUNG YI. Tại đồn cảnh sát, WONG ngã xuống sàn và do nhầm lẫn ôm NGOR. Bà WONG nhìn thấy hiện trường.

Tập 3

Vụ bê bối lan rộng và để chứng minh rằng mình vô tội, WONG chuyển NGOR đi tuần tra. NGOR đang tức giận. Trong buổi họp báo, YUEN được khen ngợi và cô được chuyển đến đội chiến đấu với công việc kinh doanh bẩn thỉu. Một nhà báo đến phỏng vấn YI mui. YI mui không có lựa chọn nào khác ngoài việc tuyên bố rằng cô ấy ủng hộ YUEN trở thành một nữ cảnh sát. SAN tuyên bố rằng anh ấy không muốn tham dự bữa tiệc cưới của các bạn cùng lớp cũ của mình, trên thực tế anh ấy muốn đi đến đó. Cuối cùng anh ta đến đó và gặp bạn gái cũ JUNE, người cũng sẽ kết hôn. Chàng cảm thấy cô đơn vì chàng vẫn chưa tìm thấy người yêu của mình. Trong nhóm, YUEN gặp lại FUNG và cô ấy lo lắng đến mức không thể làm tốt công việc của mình. NGOR và gia đình đi đến Ocean Pan để trải qua một kỳ nghỉ. Ở đó, cô nhận được cuộc gọi từ tình nhân của CHOP.

Tập 4

NGOR nói đùa rằng tình nhân của CHOI đang tìm kiếm anh ta. CHOI bị sốc. Yi mui sắp xếp SAN gặp cô LI. SAN đỗ xe của mình. NGOR nghĩ rằng SAN và LI đang làm điều gì đó bẩn thỉu và cô ấy đi cảnh báo anh ta. Họ có một cuộc tranh cãi. Không khóa xe bằng phanh tay, tai của SAN trượt xuống dốc và va vào cột đèn. FUNG và các đồng nghiệp của mình đi bắt giữ một số gái mại dâm. SIM và KUI tìm cách trốn thoát. YUEN và một cô gái điếm té ngã xuống. CHOI nhớ NGOR và LOK vì anh ta phải đến Trung Quốc đại lục một lần nữa. NGOR được chuyển sang một nhóm mới và hiệu suất của cô ấy được đánh giá cao. CHOI trở lại và nói với NGOR rằng anh ta sẽ ly dị cô.

Tập 5

NGOR is depressed. With YUEN’s encouragement, NGOR goes to Shengzhen to question CHOI. She learns that he has a mistress. In an action, YUEN tries to arrest a male criminal but she is stopped by FUNG. She challenges FUNG and states that he is a chauvinist. LOK runs away from home to find CHOI. NGOR feels hurt. FUNG’s parents CHUNG and MUI want their son to visit them more. They rent the flat close to their house to FUNG’s girlfriend CRYSTAL. KUI smuggles some illegal immigrants to work in his brothels. WA and TING argue and TING attempts to avenge the humiliation.

6. Episode 6

FUNG saves WA from TING’s attack. WA realizes that his job makes him inferior. NGOR and FA follow KUI but in vain. They are driven away by some angry villagers. SAN tricks NGOR but this makes her colleagues to look after her. NGOR does not have time to accompany LOK. SAN meets LOK in a video games centre and they become friends. CHUNG and MUI bring CRYSTAL to see the flat but MUI does not like it. They are disappointed FUNG and YUEN go to arrest KUI but they do not know that KUI is lurking them.

7. Episode 7

KUI attacks FUNG but with YUEN’s warning, FUNG is only hurt slightly. KUI is arrested and he admits that he is the boss. However FUNG does not trust him and thinks that there is a man behind KUI. WA is hurt and he is looked after by SIU TING. They fall in love with each other. LOK uses SAN’s coupons to get a gun. He is scolded as NGOR thinks that he has stolen her money to buy it. LOK goes to tell SAN. SAN scolds NGOR as she does not trust her son. At last NGOR and LOK reunite. WA does not want SIU TING to be a prostitute. He hurts the customer and runs away with SIU TING. KUI trounces PAU hard. WA does not have to money to buy SIU TING’s freedom back. SIM meets PAU again. Meanwhile FUNG has surrounded the site.

8. Episode 8

PAU is shot and at last dies of heart attack. SIM swears to avenge his death. WA and SIU TING disclose their love of each other in the custody. SIM’s henchmen shoots at the window of the police station as a warning. NGOR is hurt. SAN accompanies NGOR home and takes care of her. FUNG begs CRYSTAL to marry him and she promises him. SAN does the housework for NGOR. NGOR does not know and thinks that her mental stress is too heavy. She wants to quit her job. SAN knows that SIM has powerful fire-arm and is smuggling explosives. They go to arrest her but are locked up. NGOR is waiting in the car.

9. Episode 9

When it is the last moment before explosion, NGOR uses FUNG’s gun to release them. They continue to chase after SIM. SIM points her gun at FUNG. SAN shots her and she falls down the cliff together with PAU’s bone ash. NGOR does not like LOK being friend with SAN. Her attitude changes when she knows that SAN has done so much for her and LOK. CRYSTAL tells FUNG that she will go to France to further her studies. FUNG has no way to stop her. NGOR applies to be an armed policewoman but her marksmanship is poor. SAN teaches her and polishes her marksmanship.

10. Episode 10

NGOR passes the test and is allowed to be armed. The team fighting filthy business is disband and members return to their original teams. NGOR finds her new job exhaustive. SAN buys all necessities for NGOR. YUEN pretends to be rude so as to frighten away the man bridged by her mother. NGOR and YUEN attend the training. She is exhausted after it. Luckily SAN takes care of LOK for her. They dine out and in the restaurant, photographer takes a photograph for them. He even suggests them to take part in the family photograph competition. With his friends’ advice, FUNG questions CRYSTAL and finds that she has turned back to her former boyfriend. They break up. Outside the police club, FUNG comes across YUEN who has just argued with SI HAY.

11. Episode 11

FUNG and YUEN go to pub to chat. FUNG is drunken and YUEN has some special feeling. NGOR and LOK visit SAN as SAN is sic. SAN feels the warmth of family. FUNG thinks that YUEN should take a torch when she is on duty. He buys her one. YUEN is happy. SAN takes care of LOK and NGOR is satisfied. NGOR’s parents return from Canada. They remind NGOR that SAN ’s position is an embarrassing one. Thus NGOR stays away from SAN. NGOR tells SAN that LOK will go to Canada for vacation. SAN wants to disclose his love of NGOR but NGOR does not allow him to do so.

12. Episode 12

Being refused by NGOR, SAN is depressed. LOK goes to Canada and SAN can only see him off secretly. YUEN is jealous as FUNG attracted many female colleagues. NGOR and YUEN suspect that CIIIU takes refuge in the house of the elderly of the village. They report to the police station. FUNG comes and chases after CHIU. FUNG is pushed down the slope by CHIU and breaks his leg. YUEN and NGOR arrest CHIU. YUEN saves FUNG and FUNG realizes that some special feelings have germinated in his heart. SAN does not give up his hope. With YUEN’s encouragement, he gives her gifts to flatter her. However, NGOR returns all gifts to him.

13. Episode 13

SAN is sad as NGOR refuses him with determination. On the other hand, YI MUI is not happy with SAN’s courting NGOR. YUEN visits FUNG and they go to play basketball together. Their relationship improves. TING thinks that YUEN admires KWAN and tries to bridge them. KWAN knows that YUEN admires FUNG. YUEN is embarrassed. YUEN and NGOR and transferred to the serious crime section to investigate a case of murder. The victim is cut into three pieces. NGOR is frightened by the victim’s head. SAN gives her medicine. To thank him, NGOR goes to have dinner with him.

14. Episode 14

NGOR worries about CIIOI who has been sent to hospital. She enjoys the dinner with SAN and they have a pleasant conversation. The police suspect LING, who the victim’s ex-girlfriend, PO, who is the victim’s new boyfriend and CHEUNG, who is the victim’s neighbor. CHOI has no place to stay and NGOR allows him to stay in her house. SAN thinks that they are going to reunite and is depressed.FUNG is shocked the hear that YUEN is going to many KWAN. Later he learns that it is not the case. Moreover KWAN tells him that YUEN admires him.

15. Episode 15

FUNG and YUEN search CHEUNG’s house and find blood stains. CHEUNG admires that he killed the victim for money. FUNG decides to court YUEN. YUEN does not know what to do but at last she decides to accept him. SAN tries to find new dating partners but he cannot forget NGOR. The team handles a case of armed robbery. They suspect it was conducted by the famous thief LIP SA1 KWUN. NGOR finds that CHOI is not sincere in their relationship, so she decides to leave him.

16. Episode 16

YI MUI discovers that YUEN and FUNG are dating They trick and laugh at the lovers. SAN finds that he cannot accept his new girlfriend, so they break up. KWUN is released. The case of robbery is solved and the team learn that the robbers learn KWUN’s style. As KWUN was arrested by SAN, NGOR appreciates SAN ’s talents. KWUN is accepted by YI MUI’s family. NGOR is impressed by SAN and accepts his love. The team is instructed to investigate the case of murder. It seems that there is mysterious relationship between the victims MAN MING and YIU CHUNG.

17. Episode 17

The team is surprised as the two victims have normal backgrounds but they are killed at the same site. KWUN hates SAN as SAN framed him of killing LONG. YI MUI is kidnapped by a butcher and she is saved by KWUN. YI MUI is deeply impressed. SAN is led to a squatter where he kills CHEUNG BILL. He frames SAN as the murderer. SAN is caught red-handed.

18. Episode 18

SAN has been placed in an unfavorable situation and there is evidence to prove that KWUN was not at the scene. SAN runs away and tries to prove him innocent. KWUN and LONG were good friends but the friendship was tarnished after LONG got along with ROSE. ROSE seduced CHEUNG BILL, YIU CHUNG and MAN MING to steal KWUN and LONG’s money. They even killed LONG. KWUN was regarded as the murderer by SAN. KWUN has killed BILL, CHUNG and MING for LONG. Now he turns to his last target ROSE, who has just returned to Hong Kong to sign a contract.

19. Episode 19

ROSE is not willing to help the police. When she knows that KWUN has been released, she is frightened. YUEN feels that she is the replacement of YAN and when YAN returns she is jealous. SAN celebrates with NGOR on her birthday, she is deeply touched. ROSE is kidnapped and left in a barrel. When she knows that she was saved by SAN, she decides to accuse KWUN for SAN. In fact she was kidnapped by SAN. When ROSE is signing the contract, KWUN comes but SAN also arrives. They point at each other with guns and the situation is particularly dangerous.

20. Episode 20

FUNG gets the evidences proving that KWUN is the killer. However, KWUN falls into the sea and cannot be found. KWUN is alive and he kidnaps YUEN and NGOR. They are locked up in a freezer. SAN is fooled by KWUN. SAN is instructed to go to Yuen Long. When KWUN wants to kill SAN, FUNG comes and guns him down. Can SAN and FUNG find and set YUEN and NGOR free? What will happen w the two pairs of lovers? All these questions will be answered in the final episode of this tale.