Ellen Ripley (Sigourney Weaver) died fighting the perfect predator. Two hundred years and eight horrific experiments later, shes back. A group of scientists have cloned her, along with the alien queen inside her, hoping to breed the ultimate weapon. But the resurrected Ripley is full of surprises for her creators, as are the aliens. And soon, a lot more than all hell breaks loose! To combat the creatures, Ripley must team up with a band of smugglers, including a mechanic named Call (Winona Ryder), who holds more than a few surprises of her own.