Do-kyung is forced to go to Jinyang-gun county office for voluntary work. At the county office, there are the governor and citizens gathered to have a discussion about the black rain and come up with a solution for those who are suffering from the damage by the black rain. Yong-joo, who bullies Do-kyung, also comes to the county office. However, people suddenly start to go mad and violent, and chaos is brought to the county office. (thetvdb.com)