Hong Taera gets trapped in a fate like that of Pandora in Greek mythology. With a perfect husband and a lovely daughter, Taera leads a life envied by all. However, her repressed memories resurface. She sets out to take revenge and protect her beloved family.

Missing and death cases take place in succession along the Korean Demilitarized Zone. South Korea forms a unit led by Captain Jo Jin-Ho and First Lieutenant Shin Yoo-Hwa as assistant leader. They are given only 24 hours to find out the truth behind the incidents. Team members find evidence, but they feel like something isn’t right.