Yongshan, the head of the weapons department of the Ministry of Industry and Commerce, obtained evidence of corruption from politician Yuanze and was subsequently pursued. Yongshan hid a microfilm of evidence in the collar of a stray hunting dog named "Goro". After Yongshan was killed by the assassin, "Goro" also became the target of the assassin's hunting. Criminal police officer An Gao helped the owner of "Goro", Riko
Yongshan, the head of the weapons department of the Ministry of Industry and Commerce, obtained evidence of corruption from politician Yuanze and was subsequently pursued. Yongshan hid a microfilm of evidence in the collar of a stray hunting dog named "Goro". After Yongshan was killed by the assassin, "Goro" also became the target of the assassin's hunting. Criminal police officer An Gao helped the owner of "Goro", Riko