A group of friends who grew up together were separated after a building that collapsed changed their fates forever. When they meet again many years later, their identities have become very different that it is difficult to distinguish between friend or foe, yet they continue to struggle between justice and friendship.

The terrorist organization "Waganbu" infiltrated Hong Kong and set off a battle for chemical weapons in Hong Kong. Fan Shaofeng, the commander of the Flying Tigers, was ordered to fight against the terrorists. The Flying Tigers are trapped in the ruthless killing of Wagambu, the Special Service Superintendent Zhan Bowen convenes the police elites Zhang Weihua, Zhang Jiaxuan and Gao Zile to form a secret counter-terrorism team S Team . Faced with many crises, with the assistance of Interpol Xu Junfei, the two generations of China and Youth finally put aside their grievances and feuds and joined forces to prevent the spread of the chemical weapons virus in Hong Kong.

During a promotion ceremony for police officers, Senior Superintendent Ko Yat-tai is taken hostage. Seeing his father in danger, OCTB Senior Inspector Marcus Ko Ka-chun is unable to do anything. In a split second, Yat-tai’s eldest son Vincent Ko Ka-long, a member of the Flying Tigers, demonstrates his excellent marksmanship to save him, which unexpectedly acts as a trigger to bring what was buried in the Ko family back to light. A recent spate of murders of undercover cops, a surge of new drugs, and terrorist groups are a portent of a menacing future that Superintendent Lip Yu-hong relentlessly fights against. Meanwhile, caught in their own relationship dilemma, two brothers, Ka-long and Ka-chun, end up going their separate ways, turning into rivals...

Northern Lights Insurance Company has a team of insurance investigators that is led by Fong Chi-Keung, the wealthy heiress Do Sam-Yu, the affectionate Bak Tin-Ming, and retired police officer Cheung Dong. They each have their own talents and they form a legendary team in the insurance industry. They thoroughly investigate and uncover the truth in all thorny, dangerous or strange cases that are passed to them.

Starring Chilam Cheung (張智霖), Bosco Wong (黃宗澤), and Chrissie Chau (周秀娜), The Impossible 3 follows three strangers who team up to combat danger coming in their way. In doing so, they get entangled in a series of mysterious cases. They find themselves to be the center of a manhunt involving both the cops and the triads.