Born KO TAI-HEI, Detective COLUMBO has an IQ of up to 283, and is able to achieve a detection rate as high as 99%. Despite his outstanding credentials, he is labeled as a dangerous and combative figure that needs to be kept under watch...

Flashbacks: LOUIS reveals to HEI how he got to know his father KO NGAU. Now that NGAU has passed away, LOUIS needs ON to help arrange a final meeting for HEI and his late father...

A senior officer orders LUNG to engage in a fencing duel with EVA, and LUNG manages to defeat the girl in just a few seconds. EVA comes to see LUNG as his supervisor and asks him to follow her instructions in all circumstances...

ON is shocked to see COLUMBO break down crying with the china doll in his hand. The headache-stricken COLUMBO asks for an urgent brain operation in order to transform back into his original self...

ON is awakened by the baby’s crying in the early morning. With no better alternatives, he decides to bring the baby back to the police station. Manager WONG and his wife are shocked to see their son in the police station...

COLUMBO manages to attract much attention and praise from EVA. EVA is keen to find out more about the china doll, so COLUMBO starts to spill the beans about his past with MUI...

COLUMBO asks EVA to stop investigating his case, as it would be too dangerous for her. LUNG hears TIN calling for help upon his return home...

JOANNA can tell from EVA’s response that she is in love with COLUMBO. Much excited about EVA’s romance with COLUMBO, JOANNA describes the super detective as a loyal gentleman...

EVA confides to COLUMBO’s body, during which the heart machine is found to be working again. Shocked yet happy, EVA rushes out to look for the doctor at once. EVA notices a kiss mark on COLUMBO’s face...

MUI comes over to COLUMBO’s apartment all of a sudden, and starts revealing her miserable past to EVA. EVA shows sympathy for MUI, but is not going to give up on COLUMBO no matter what. EVA and MUI have a bitter quarrel over COLUMBO and EVA is so angry that she asks MUI to leave at once...

SCOTT claims to have caught the perpetrator of the acid attack, but EVA believes that the so-called suspect SHE PING is just a scapegoat for the real culprit. EVA receives a letter from JOANNA stating that she is not coming back to Hong Kong and asking EVA to look after ON...

TIN points out that LUNG and EVA are worlds apart in family background and social status, and suggests the lad go out with HAN instead. As arranged by LUNG, the real estate broker who is responsible for the transaction between MING and MUI has come to the police station to give a statement...

EVA accompanies COLUMBO back to his place, during which she plucks up the courage to confide in him. Sadly COLUMBO is totally clueless as to what she is talking about. Believing that the china doll may help bring back his memories, EVA decides to give it a try and takes COLUMBO into his own bedroom...

EVA and LUNG go to see PING in the detention center, during which they manage to make him reveal the truth by stratagem. LUNG infers that MING was so eager to sell the flat and leave Hong Kong that he ended up falling into MUI’s trap...

Not wanting to further agitate the lady, LUNG tries to dig up information from Mrs TONG bit by bit. EVA, on the other hand, is straightforward enough to point out that MING has committed adultery, which comes as a huge blow to Mrs TONG...

MUI recalls the past and begins to reveal why she had to purchase the flat from MING. Flashbacks: MING calls the asylum asking its staff to go catch MUI. Just then MUI comes up and starts to tangle with MING. EVA does not believe MUI, so MUI shows EVA the scar she got on her face after the car crash...

LUNG updates EVA on the investigation progress in relation to MING’s disappearance, from which he can conclude that MUI has been telling the truth. EVA decides to have a word with Manager WONG about the embezzlement case, from which she wants to find out whether COLUMBO has really done what ON has claimed...

LOUIS suggests EVA take a break by going on an overseas trip, and EVA makes it very clear that she will not be marrying COLUMBO no matter what. EVA is surprised to hear that Director LI and Nurse KAR have both resigned...

COLUMBO and MUI get married at the Marriage Registry, and go take wedding photos at a studio after the ceremony. EVA and LUNG go to MUI’s residence to conduct a thorough search, during which EVA reveals how she encountered LUNG on Cheung Chau in her early childhood...

LOUIS explains that SCOTT has revealed the secret of ON and COLUMBO to the Governor, who then decides to have LOUIS and COLUMBO replaced by SCOTT and ON. LUNG asks for a transfer to work directly under the supervision of SCOTT, for which he is highly praised...

LUNG’s colleagues have all teamed up against him, but ON gives them a good telling-off for this and admonishes them to collaborate with LUNG in all circumstances. SCOTT is shocked to hear that all the staff in the police station are suffering from diarrhea, but no one is allowed to seek treatment in hospital as ordered by ON...

ON arrives at the airport, but cannot find JOANNA. Later the airline staff reveals to him that JOANNA has had an acute heart attack and been sent to hospital for urgent care. ON blames COLUMBO for causing the deaths of JOANNA and their unborn son...

SCOTT is rumored to be the successor to the existing Commissioner of Police who will be retiring soon. ON takes advantage of his identity as a Senior Inspector, and gets more and more heavily involved in corruption...

COLUMBO mistakes NAM for MUI, and starts to confide in her. COLUMBO points out to SCOTT that he will not be prosecuted that he agrees to present the evidence against ON, as guaranteed by the Secretary for Security...

KIU comes to tell COLUMBO that KEUNG is still awaiting NAM, making LUNG believe that NAM may have been caught by ON. COLUMBO receives a call from ON, and later promises to get him a boat for his escape to Taiwan...