In a remote corner of the world, a group of troubled youths finds themselves whisked away to a mysterious military base after a series of misbehaviors. Expecting little more than a stern reprimand, they are instead thrust into a world of secrets and shadows. In a desperate bid for freedom, they must unravel the mysteries of the base and confront the sinister forces that lurk in the shadows. But with time running out and danger lurking around every corner, the odds of survival grow slimmer by the minute. Courage, strength, and sacrifice, would they finally escape the clutches of the base and emerge from the darkness into the light?

Erick Ju, who is wanted internationally as a serious criminal, goes missing after undergoing a face-changing operation and using black magic to wipe his memories. Erick Ju and investigative journalist Heon Bin both find themselves in Ulaanbaatar. Not only does Heon Bin become a witness to a mysterious case, he also experiences unbelievable things in the underworld.