Aliens

Astronaut Ripley, who survived an alien attack years ago, returns to the scene of the horror with a platoon of the US Army to finish off the murderous spawn once and for all. On site, the well-armed elite warriors encounter an enemy that is far superior to them both in numbers and "morally". A devastating massacre ensues, culminating in a woman-on-woman duel between Ripley and the mother of all aliens.
As the head of an elite unit, Officer Ripley returns to planet LV 426, where the alien danger threatens to arise anew. - Original length version!