Five naive and lively girls, each with a lonely and throbbing heart, in this plain summer vacation, they encountered many exciting, ridiculous, bizarre and adventurous things...

A story that tackles the life experience and mental issues that plague the PTU officers from the perspective of a former undercover cop who returns to the force. After successfully bringing down the triads, Gao Jiasheng (Raymond Lam) goes back to wearing the police badge and crosses paths with Sergeant He Huiling (Charlene Choi) and Team Leader Liu Jianhui (Alex Fong). The three have their share ...

Bomb disposal expert Ivan Yeung returns from England and happens to come across a grenade case by accident. Ivan's skills are highly appreciated by senior chemist Ko Yin-Bok and he is invited to join the Forensic Division. Meanwhile, other members of the team are caught in an explosive incident that ends up changing team dynamics.

Li Zhipeng is the son of Li Jide who used to be a taxi driver, but he was engaged in a profession different from his dad's identity—lawyer. He has the talent to be a lawyer and has the characteristics of a rogue.

Bomb disposal expert Ivan Yeung returns from England and happens to come across a grenade case by accident. Ivan's skills are highly appreciated by senior chemist Ko Yin-Bok and he is invited to join the Forensic Division. Meanwhile, other members of the team are caught in an explosive incident that ends up changing team dynamics.