It's the year 2708 and humanity has rebuilt itself from the ruins of a machine apocalypse - no technology, no machines, just grit and simple living. When a small-town teacher named Samara is thrust into a deadly confrontation with the legendary Rangers of Centaria, she uncovers a web of secrets and a centuries-old lie that could upend everything her people believe. But the truth about Centaria is nothing like the stories - and Samara is about to learn that the people who left Earth behind never really let it go.