Ripley (Sigourney Weaver) is back, and not all is as it seems! The unbridled drive of the aliens to reproduce has now been matched with a misguided military plot to breed them. In order to combat the alien menace, Ripley teams with a group of smugglers. But among the surprises of this thrilling fourth installment of the iconic series is that some of Ripley's "good guys" may have some not-so-good motives themselves!