One hundred prisoners. One dying station. One shot at a second chance. They were sent to Earth to die — a "test" the Ark's council never expected to survive, and never planned to grieve. Instead, they found something impossible: sunlight. Rivers. Green, growing ground no living person has touched in a hundred years. For a few days, it feels like paradise found. But the crash was loud. And something out there heard it. A hundred years ago, the bombs weren't the only thing that ended the world — a mutation tore through what was left of humanity first, turning the infected into something that isn't quite dead and isn't quite human anymore. It's been sleeping in the dirt and the treeline ever since. Now it's waking up. With Grounders who've spent a century learning how to survive both the infected and each other, and a hundred kids who've never had to survive anything at all, the ground isn't the fresh start anyone was promised. It's a countdown.