Part 8/9:
The story takes a twist when Jung, motivated by a deep sense of loss and solidarity with fellow victims, collaborates secretly with Byung Sook to expose the truth behind the toxic testing. Their clandestine effort culminates in a breakthrough that ultimately leads to the arrest of the company's head, the arrogant Chen, whose single-minded ambition resulted in countless lives being shattered.
As the film concludes, Jung's son receives new lungs, providing a glimmer of hope amid the devastation. The final scenes depict protests, demanding accountability from those responsible for the negligence that culminated in a public health crisis, highlighting the extensive toll the contamination took on thousands of lives across Korea.