In a future where humanity has fled a dying Earth, the remnants of civilization cling to existence aboard a massive, decaying generation ship in Neill Blomkamp's gripping sci-fi thriller. The story centers on a hardened engineer, tasked with maintaining the vessel's failing core systems, who makes a terrifying discovery buried deep within the ship's forbidden lower decks—a secret that challenges the very foundation of their journey and threatens to unravel the fragile society on board. As she investigates this existential mystery, she must navigate a labyrinth of corporate deception and rising paranoia among the crew, all while the ship's life-support systems continue to degrade. Blending stark, visceral visuals with profound philosophical tension, the film creates a claustrophobic atmosphere of impending doom, exploring themes of survival, sacrifice, and the haunting price of preserving the human race.