This is a military thriller drama that takes place in the Demilitarized zone (DMZ)and tells the story of a specialized search party that forms to uncoverthe truth behind mysterious disappearance and murder cases.

Military search troop members, including Yong Dong Jin (Jang Dong Yoon) and Son Ye Rim (Krystal Jung)try to fight against a mysterious creature and struggle to get away from the DMZ. They build camaraderie through their struggle.