The Invisibles

In the city, some crazy female eatery customer kills people for no apparent reason. EUIP Kiu Po-po comes to intervene, but she gets hurt. Meanwhile, CTRU runs into an insane guy.

Ka-keung rushes to the scene just in time and saves Po-po.

Yiu-yeung feels bothered as he recalls he once hurt Tai-nam. Siu-jie always likes Yiu-yeung and comes forward to console him.

According to POTT CSP Fong Kwok-hei's analysis, the perpetrators in the floating corpse case are a group of hunters.

Po-po receives a report and is shocked to see Ka-ka's dead father, who committed suicide. She cannot hide her sadness.

Yiu-yeung turns up just in time and defeats the hunters.

ACP Kong Chi-kin wants CTRU to collaborate with POTT.

POTT and CTRU jointly launch an investigation.

The kidnappers want to get even by killing Hiu-yuet. Ka-keung turns up and intervenes.

Po-po and Tai-nam are forced to move out.

POTT receives intelligence that overseas terrorists Ba Yik and Ma Lui are coming to Hong Kong.

The gun-wielding terrorists take people hostage at Fook Lui Mall and block mall entrances and exits.

Ka-keung prepares for the SP promotion exam. But his promotion is affected as the mall hostage incident is negatively covered by the media.

Hiu-ming comes clean with Yiu-yeung about the reasons behind his deteriorating relationship with his daughter.

Chi-yiu is missing. Hiu-ming still feels uneasy after lodging a report.

Ying Fung and Siu-jie take the girls on a combative run.

Yiu-yeung nervously rushes to the explosion scene.

Some bomb is planted on Sparky, and it is taken to the city center to be detonated.

Both Po-po and Tai-nam apply for leave.

Po-po is moved as she realizes Yiu-yeung has kept a music box containing the memories of the two of them.

Tai-nam comes forward to console Siu-jie as he knows Siu-jie is lovelorn.

A man is found dead in a hotel room.

CTRU team members get worried as they just cannot contact Tai-lik.

After getting kissed by Ying Fung, Ka-keung astonishingly pushes her away.

After getting out of prison, Shing-tin gives a speech in a lofty manner.

Ka-keung and Ying Fung sweetly hold hands while romantically taking a stroll.

Tai-nam is guided by some sound and finds Siu-jie's location.

Yiu-yeung and his subordinates rush to the pier.

Kwok-hei rebuilds morale by encouraging the chums to cheer up.