At the farthest reaches of the solar system, Ellen Ripley awakens on board the space station "Auriga". Her last memory is of her own fiery death. And yet she is somehow alive. Ripley discovers that her "resurrection" is a result of an incredible experiment which has altered both her and the creature she has been carrying. To combat the incalculable alien menace, she teams up with a renegade band of space smugglers.