Ellen Ripley's nightmare continues when her ship crashes on Fiorina 161, a brutal maximum-security prison planet. Stranded among hardened inmates, she soon discovers a terrifying truth—she's not alone. A deadly creature has followed her, and survival means confronting her darkest fears in the most unforgiving place imaginable. Directed by David Fincher. Starring Sigourney Weaver, Charles S. Dutton, and Charles Dance.