[5] In January 1972, at a South Korean base in Nha Trang, Vietnam, a missing platoon sent a radio transmission from R-Point, a strategic island near Saigon.

Lieutenant Choi receives orders to lead a squad, including Sergeant Jin Chang-rok, on a mission to extract the missing soldiers within a week.

That night, American soldiers arrive and warn the Koreans about supernatural forces in the plantation's second floor, cautioning them not to touch anything.

The unit divides into two groups on the fourth day, discovering a crashed Huey helicopter with decomposed American corpses, revealing that the soldiers they previously encountered were ghosts.

Returning to the plantation, they search for American supplies on the second floor but find it deserted, confirming the presence of supernatural entities.

Corporal Byun, seemingly possessed, is shot by Lieutenant Choi but not before pulling the pin from a grenade, blinding Sergeant Jang.

At a completely abandoned base, a radio transmission from Lieutenant Choi could be heard, requesting reinforcements as they are desperate and at the brink of their KIA as well as claiming they are not dead.