Ellen Ripley has been in stasis for 57 years aboard a shuttlecraft after destroying her spaceship, the Nostromo, to escape an alien creature that slaughtered her crew. Ripley is rescued and debriefed by her Weyland-Yutani Corporation employers who doubt her claim about alien eggs in a derelict ship on the exomoon LV-426, now the site of a terraforming colony. After contact is lost with the colony, Weyland-Yutani representative Carter Burke and Colonial Marine Lieutenant Gorman ask Ripley to accompany them to investigate. Still traumatized by her alien encounter, she agrees on the condition that they exterminate the creatures. Ripley meets the Colonial Marines aboard the spaceship Sulaco but distrusts their android, Bishop, because the Nostromo's android, Ash, had betrayed its crew to protect the alien on company orders.