Arianna Williams is living with her three brothers, after her parents died from a tragic accident when she was six. With the world dying, water becoming scarce, vegetation gone. The United Nations decides to leave Earth for good, and head towards the new world they've discovered, Orbis. The only problem is that they cant take everyone. In fact, they only have room for a couple hundred. Against all odds, Arianna and her best friend Raegan are chosen to save the human race, on a new planet. While the world she knows, along with her brothers and ninety-nine percent of the population are left on Earth.