Returning to Earth after a decade on an alien world, Dr. Rose Franklin faces a war-ravaged planet. Having discovered an enormous metal hand in her youth, her adult life has been consumed by unraveling its mysteries and defending humanity from an alien invasion. Now, the Earth Defense Corps is fractured, and Rose stares into the abyss of a new conflict where humanity itself is the enemy. Aliens have left their colossal war machines, turning humans into agents of their destructive will. With alliances in tatters, Rose must navigate a global chessboard, becoming a key player in a game to control the fate of the planet. Will her efforts to save humanity turn her into a pawn or lead to salvation?