In the distant future, the Horizon, a massive interstellar spaceship, becomes the epicenter of a battle for survival when an alien force infects its systems, turning the ship into a deadly weapon. Captain Voss and her crew must face mutiny, sabotage, and an uncontrollable alien entity that feeds off the ship's energy. As the ship descends into chaos, Voss discovers that she is the key to stopping the destruction?though it may cost her life. In a race against time, she and her reluctant ally, Ross, must sever the connection between the ship and the alien force before it spreads beyond their control, ultimately fighting to save humanity from an unimaginable future.