In the year 2149, Earth is collapsing after decades of climate wars and biological disasters, forcing humanity to flee aboard massive evacuation ships heading toward a distant colony planet. When mechanic Ava Cross boards the final transport vessel only to discover someone is sabotaging the mission from inside, she becomes trapped in a deadly conspiracy where every passenger is hiding secrets and survival comes at a terrifying cost. As oxygen levels fall and violence spreads across the ship, Ava must uncover the truth before humanity’s last hope dies somewhere in deep space.