Cheonyang Filtration Plant

Hyung-in heads to the Cheonyang Filtration Plant to stop the disaster that is about to occur in Saju. But he becomes tied up by the Youngjingyo believers. There he hears that another gas terror attack that’s similar to that of 1987 is about to take place. The people in Saju start to flock around the filtration plant as if they’re possessed by something.