Generation Slash

During his patrol, Lei Zin Kiu comes across a man putting up posters about an alien invasion. Despite his superior's mockery, he continues chasing down leads and soon discovers the hidden agenda behind the whole charade, which will change his life forever after his encounter with Cheung Nok Hang and Chan Ka Hei, two Slashers from a detective agency.

After learning that her dad leaves her a detective agency, Ka Hei goes there for the first time, only to be greeted by a stranger she met on her birthday. While Ka Hei is still feeling lost in life, this very stranger helps to light the path for her. Meanwhile, Lei Zin Kiu has to decide on his next move when his superior deliberately picks on him for reasons unbeknownst to him.

After quitting his job, Zin Kiu works as a bodyguard for Mr. Mo, a wealthy man who has just woken up from a five-year-long coma. After waking up from a coma, Mr. Mo is determined to confess to Zan Zan, a hairstylist, that he was going after before he fell into a coma. Little does Mr. Mo know that everything has changed and Zin Kiu is caught up in a dilemma again.

After much deliberation, Chi Kiu decides to join Unlimited Slash Limited and works undercover to help stop Mr. Mo from confessing to Zan Zan. When Chan Yau Shing breaks the news of his engagement party, which will take place in a month, the trio has to work fast to make Mr. Mo give up on Zan Zan. However, they are put in a bit of a dilemma when Mr. Mo suddenly shows up at their office.

Mr. Mo convinces the trio to help him win Lei Zan Zan over and the three of them come up with a plan to ruin Chan Yau Shing's engagement party. But little does Chi Kiu know, Nok Hang and Ka Hei accept a commission to help one other person and that it is all just a charade. When a lady asks for their help, the trio sets out to unearth the mystery behind the case.

The unsuspecting trio goes to a client's house to help investigate a case. But little do they know that the client's daughter is an acquaintance of Ka Hei. With two different versions of the story, everyone is deeply skeptical about the whole case. But Ka Hei is determined to investigate and get to the bottom of things.