The story follows the lead characters through their experiences as members of the Police Negotiation Cadre (PNC).

The PNC is a volunteer unit of the Hong Kong police force specializing in negotiations with terrorist members, partakers of local violence, and individuals contemplating suicide.

There is a love square between Pang Kwok-Tung (Bobby Au-Yeung), Kan Kit (Kenix Kwok), Mok Ka-Chung (Moses Chan) and Poon Man-Ching (Winnie Yeung).

Bobby Au-Yeung later finds out that Winnie is cheating on him and secretly meeting Moses, Kenix Kwok's husband.

Towards the end, they become professional members of the PNC, and even stop their own instructor, Pang Kwok-Tung (Bobby Au-Yeung) from committing suicide.