Desperate to reach Inuvik after her flight is canceled, New York lawyer Liv Rivera hitches a ride on a small private plane. Then, disaster strikes.

With the plane lying beneath the frigid water, Liv attempts to retrieve valuable supplies at the bottom of the lake as past demons come to the surface.

In the wilderness, Liv scrambles to secure food, fire, water and shelter. Flashbacks reveal Liv's painful past and the reason for her journey.

Childhood memories help — and hinder — a resourceful Liv as she hikes through the woods in search of the light she saw the night before.

After a giant leap, Liv faces a series of daunting challenges but finds hope and clarity when visions of her loved ones appear.

Slipping in and out of consciousness, a trapped Liv must decide whether to continue fighting for survival — or just let go.