Hau Ko informs Chung that he has decided to move the drug production factory and his decision is final. Lap Man quickly passed on this piece of information to Wu Sir. Wu Sir tells Lap Man to investigate further especially in their house as Hau Ko may keep some important documents at home.
Sam Jie accompanies Fa Si Lai on her morning walk. Fa Si Lai arranges a meeting for Hau Ko to meet them on the hill. She tells Sam Jie that Hau Ko is a good man and tells her not to give up on love just to make others happy. Fa Si Lai suddenly remembers that she has to meet her friends for breakfast and leaves Sam Jie on the hill with Hau Ko. Fa Si Lai asks Hau Ko to take good care of Sam Jie.
After Fa Si Lai left, Hau Ko professed his love to Sam Jie. He promised to take god care of her. He also asked her not to worry about Yuk Bo and Pak Kiu. Sam Jie tells Hau Ko that she's very confused. Hau Ko suddenly noticed a light from far away and knows that the light is actually from Chung's gun. He quickly lead Sam Jie away from the spot and told her to take a seat on a rock. He tells her to wait for him while he goes and get her water.
Hau Ko confronts Chung and the both of them end up beating the crap out of each other. Hau Ko demands to know the reason Chung wants to kill Sam Jie. Chung explains that Hau Ko loses focus when it comes to Sam Jie. Hau Ko tells Chung that he remembers their dreams to succeed but he will never give up his love for Sam Jie. Chung wants to kill off Sam Jie but Hau Ko stands in front of his gun. Seeing that Hau Ko is willing to die for Sam Jie, Chung decides to give her another chance.
While Hau Ko was away, Sam Jie reflected on the things Hau Ko has done for her; from helping her look for a suitable shoplot for her restaurant to helping her get the best doctor when Fa Si Lai was injured. She finally acknowledges her feelings for Hau Ko and decides to accept him.
Chiu Sir and Yuk Bo were on their rounds when they saw a group of teens high on drugs outside Mega Disco. Chiu Sir chased a few of the teens, while Yuk Bo and the rest round up a few more. Lap Man came out of Mega Disco and Yuk Bo accuses him of selling ecstasy pills. Lap Man warns Yuk Bo to watch her words.
Yuk Bo then went to check on Chiu Sir who chased after a few teens earlier. The teens overpowered Chiu Sir and sprayed his face with paint. Luckily Yuk Bo and the team arrived on time to help Chiu Sir. Chiu Sir was embarrassed by the incident and wants to quit the police force. Yuk Bo told him not to give up so easily.
Yau Yau and Lap Man decides to take photos at one of those photo booths at the mall. Lap Man was looking for change when a HKD 5 coin drops out from his pocket. Yau Yau offers to help him insert that coin into the machine but Lap Man declines. He says that HKD 5 coin means a lot to him and he will not use it. The HKD 5 coin has helped him make many important decisions in his life. However, when Yau Yau asks Lap Man to tell her the full story of the meaning behind the HKD 5 coin, Lap Man was coy and tells her that he will share the story another time.
Yau Yau goes home and share Lap Man's HKD 5 story with Sam Jie. As the words spoken by Lap Man is similar to those spoken by Laughin, Sam Jie becomes suspicious of Lap Man's identity. Sam Jie suggests to Yau Yau to set up a trap to test Lap Man. On the pretext of giving her new book to Hau Ko, Yau Yau brings Lap Man to Hau Ko's private study. She then passes him the book and tells him to place it on the bookshelf while she answers a call. When Lap Man tries to re-arrange the books, he discovered the hidden book which triggers the hidden safe. He then takes photos of the hidden safe. All these while, Yau Yau is watching him from the door.
After the paint spraying incident, Chiu Sir is on extended leave. The EU team blames Lap Man for causing this. Yuk Bo, who is taking over from Chiu Sir as the ICPC for their EU team, suggests to park their EU vehicle in front of Mega Disco. This affects Mega Disco's business. Lap Man lodge a police report against Yuk Bo, saying that she pushed him without reason. Yuk Bo's superior also questioned her judgement on parking the EU vehicle outside of Mega Disco night after night. Her superior has no choice but the retract the ICPC position given to her earlier.
Chung informs Hau Ko that he will be busy with the set up of the new drug production factory. As such he has no time to watch over the operations at the old site. Hau Ko assigns Lap Man to watch over the old factory.
Pak Kiu goes to Mega Disco to look for Lap Man. They met at the back alley behind Mega Disco. Pak Kiu asks Lap Man the reason he lodge a report against Yuk Bo, but Lap Man says he had to do so as Yuk Bo is prejudised against him. As the two argued further, Hau Ko walked past. Hau Ko reveals to Pak Kiu that Laughin was an undercover cop. Pak Kiu was shocked to learn that he killed his own comrade.
Yau Yau and Sam Jie tried many ways to keep Lap Man and Hau Ko apart. For one, Yau Yau is afraid that Lap Man will find Hau Ko's crime records and her father will be incarcerated. She is also worried that if Hau Ko finds out that Lap Man is an undercover cop, Lap Man's life will be at risk. Yau Yau is very stressed over this and as a result, she is suffering from insomnia.
Pak Kiu lost his focus at a meeting with his OCTB colleagues. He is suppose to lead his team on an operation at Mega Disco. However, Pak Kiu decide to pull out of the operation. He is still finding it difficult to accept that he killed Laughin, who worked as an undercover cop. Pak Kiu starts to question his ability as a responsible police officer.
Pak Kiu seeks confirmation from Wu Sir that Laughin is indeed an undercover cop, but Wu Sir told him that whether Laughin is or is not is no longer important. What matters is that Pak Kiu has done what was deemed right at that time. Pak Kiu tells Wu Sir that he could not face his own conscience and offers to resign. Wu Sir refuses to accept Pak Kiu's resignation and tells Pak Kiu to temporarily go on leave.
Chuen Suk visit Yuk Bo and informs her about Pak Kiu's issue. Yuk Bo was shocked to hear that news. Pak Kiu comes home and Yuk Bo questions him about his leave. However, Pak Kiu insists that he wants to resign. Yuk BO asks Pak Kiu for the reason and Pak Kiu tells her that he has done something terrible that cannot be undone. When Yuk Bo asks Pak Kiu further, Pak Kiu refuses to discuss the issue.
An enraged Chuen Suk goes to Oi Sam Ook to confront Lap Man. Coincidentally, Lap Man was there dining with Hau Ko. Chuen Suk blames Lap Man for Pak Kiu's resignation as well as for lodging a report against Yuk Bo. The two of them argued while Hau Ko watches. Chuen Suk tells Lap Man that Lap Man's actions had cost Pak Kiu his police career. Lap Man was stunned, while Sam Jie and Yau Yau rushed out from the kitchen.
After hearing Chuen Suk's argument with Lap Man, Sam Jie goes to Pak Kiu's place to visit him. Sam Jie has a talk with Pak Kiu and Pak Kiu confessed to Sam Jie that he was the one who killed Laughin. Sam Jie was surprise to hear that piece of news as she has always thought that it was Lap Man who killed Laughin. Pak Kiu asks Sam Jie to inform him if she knows where Laughin was buried.
After speaking with Pak Kiu, Sam Jie goes to Mega Disco to confront Lap Man. Lap Man admits to Sam Jie that Pak Kiu did in fact fire a shot at Laughin but Lap Man explains that Pak Kiu's shot did not kill Laughin. It only injure Laughin. It was the second shot that Lap Man fired that killed Laughin. Lap Man tells Sam Jie that he did not tell this part to Hau Ko as he wants full credit to get a promotion within Chun Hing. Sam Jie orders Lap Man to stop what he is doing immediately. She wants Lap Man to marry Yau Yau and leave the country for good.
Sam Jie finds out from Lap Man where Laughin's body is and brings Pak Kiu to the site to pay their respects. Sam Jie is suppose to meet Hau Ko for a drink but she was late. After finding out Lap Man is an undercover cop, Sam Jie tells Hau Ko that she is willing to help him in matters related to Chun Hing. Hau Ko is surprised by Sam Jie's offer as she has always stayed out of matters related to the triad.
Sam Jie and Hau Ko walks past a jewellery store. Hau Ko offers to buy another necklace for Sam Jie so she doesn't have to wear the one given by Laughin. The salesperson offers to help Sam Jie polish the necklace given by Laughin.
During dinner, Hau Ko receives a call from Chung. He asks Lap Man to join him as there are matters to attend to. Yau Yau and Same Jie are worried for both Lap Man and Hau Ko. Sam Jie tries to stall them by asking Lap Man to offer prayers first. When there's nothing she could do to stop them, Sam Jie pretends to faint. Hau Ko calls off their assignment and accompanies Sam Jie at the hospital.
Hau Ko receives a call from the salesperson at the jewellery store. It appears Sam Jie's old necklace was tampered with and it contains a listening device. Hau Ko begins to suspect Sam Jie. He asks Lap Man and Chung to put their drug dealings on hold until further notice.