In 1945 August, the Japanese coal mine warden Liukawa Ichi received the Kwantung Army Headquarters command: destroy chemical laboratory, don't leave any evidence, to immediately withdraw japan. The CPC underground organization is celebrating the upcoming victory, but Liukawa Ichi continued to study the chemical weapons and to be delivered to the northeast of the battlefield troops news. Shao Pengfei from a superior command, set up action team with coal city underground made organization to prevent chemical weapons of Sinotrans, suffered heavy casualties, but never found the source of chemical weapons. Shao Pengfei adventure into a real attempt to prison investigation Liukawa Ichi, but didn't think his plan is still Liukawa Ichi learned, action failures. Prison Shao Pengfei launched by the inmates work, finally learned that Liukawa Ichi attempts to use chemical weapons at once the successful development of the entire city, not out. Shao Pengfei and the inmates Counterplot in the party under the command, using Liukawa Ichi's crazy eventually destroyed the coal mine prison chemistry laboratory, stop the ruin of coal city plot.