A teenage daughter, Vik, and her father, Wyatt, eke out trapped lives aboard a crashed spaceship, separated from each other by a wall of glass. But Vik's beginning to get cryptic messages through her radio, messages that sound like they're coming from her mother, long thought lost in the crash. As her relationship with her caring but domineering father deteriorates, the messages increase in urgency, telling Vik to leave the ship. Soon, she'll have to make a choice she never wanted to: to trust her father, or to follow the voice and step outside onto the planet's mysterious, dark surface.