In a world where the rich live in a floating city called Solaris and the poor rot in the dark, frozen streets of The Shallows, the sun is a luxury no one can afford. Cameron Ellis is a smuggler who steals power cells from the rich to keep his people from freezing to death. He’s cynical, tough, and only looks out for himself.​On a high-stakes heist, Cameron finds something he didn't expect: a girl named Brittany Diaz hidden in a high-tech container. She’s the daughter of the man who runs the world, and she’s a "Solar-Carrier"—her body literally generates the energy that powers the planet.​The plan was to ransom her, but they ended up on the run together. As they travel through dangerous ruins and neon slums, Cameron starts to see the girl behind the "princess" act, and Brittany realises the world her father built is a lie. But there's a dark secret: Brittany was sent to the Shallows on purpose. She’s a walking time bomb designed to explode and "cleanse" the slums so her father can rebuild. To survive, Cameron and Brittany have to break the cycle and find a way to save each other before she burns out.