Presented by Xi'an Film Studio and directed by Huang Jianxin, it stars Gao Ming, Gerhard Olschewski, and Liu Zifeng.
One day, when Zhao returns from a business trip, he finds one of his chess pieces, the black cannon, missing.
Despite heavy rain, he immediately hurries to the postal office and sends a telegram to the hotel he stayed in previously, which reads, "Missing black cannon.
Unexpectedly, this ambiguous telegram arouses vigilance of the authorities and the police swiftly set up a case to investigate the so-called "Black Cannon Incident".
Meanwhile, the company manager Li Renzhong (Gao Ming) visits Zhao and accidentally finds the chess set with the missing black cannon.
The new interpreter, Feng, mistakenly translates "bearing" into "bracket", leading to serious damage to the parts during a test run, as well as severe financial loss.
Before long, the postal office brings a package to Zhao, and Zhou and the others covertly open it, only to find a Black Cannon chess piece.