Stranded on an uncharted island after a crash landing, a band of scouts must navigate toward their only potential salvation: the peak of a towering mountain dominating the landscape. As they begin their grueling climb, the survivors quickly realize the island harbors more than just natural hazards—a sinister entity called the Scoutmaster hunts those who separate from the group, while increasingly vicious creatures populate the upper slopes. The expedition becomes a desperate race against both predatory threats and the mountain itself, with rescue hanging in the balance at an unreachable height.