The Public Security Bureau investigates an explosion at Chengdu Power Station, which is linked to deaths at St. Paul's Hospital.

Hao Wei was a gun-maker, he made a mysterious perfect gun during the Cultural Revolution. Now he works as a film print transporter for cinemas, yet the temptation of guns drives him into the deeper crime.

An international film crew is at work on location at a tomb when ancient golden statues are replaced by fakes. A crew member investigates.