在一次原始森林的看守任务中,一位女看林人遇见了两位过着“后启示录”式蛮荒生活的生存者,一对父子。这对父子的信仰似乎自成一派,与自然的关系也微妙诡秘。看林人对这对父子的身世充满怀疑,但当他们的林中小屋在夜里被一种神秘生物袭击,她恍然发觉,在这片肆意生长的荒野,孕育着更加可怕的凶险……An injured forest ranger on a routine mission is saved by two off-the-grid survivalists. What is initially a welcome rescue grows more suspicious as the son and his renegade father reveal a cultish devotion to the forest.