During the Vietnam War, a South Korean army base begins receiving mysterious radio transmissions from a patrol that went missing six months earlier. A shell-shocked commanding officer (Gam Woo-Sung) and a ragtag military unit are sent into the desolate stretch of land known as R-Point to gather clues as to the whereabouts of the missing soldiers. What appeared to be a clear search-and-rescue mission turns into something far more terrifying than any battle.