After the death of Shiloh Hunter, her sister Jax agrees to a tribute proposed by Shiloh’s daring friend, Luce. The two travel to Thailand to conquer a treacherous plank walk on Mount Kwan, but a sudden rockslide leaves them trapped at a terrifying height of 3,000 feet, forcing the duo to push their limits and cooperate to stay alive. Harriet Slater as Jax Hunter, Shiloh’s older sister Arsema Thomas as Luce, Shiloh’s friend