Following the events of the previous film, a Predator ship leaves Earth carrying Alien facehuggers, and the dead body of Scar, the Predator that helped Lex defeat the Xenomorph Queen. A chestburster with traits of both species erupts from Scar’s body. It quickly matures into an adult Predalien and starts killing the Predators on board (in the extended cut, this happens on a scout ship that has been detached from the mother ship). A Predator’s weapon punctures the hull and the ship crashes in the forest outside of Gunnison, Colorado, killing all but one of the Predators, who is severely injured and sends a distress signal before being killed by the Predalien.
The Predalien and several facehuggers escape, implanting embryos into a nearby father and son who are out hunting in the forest, as well as several homeless people who live in the sewers. On the Predator homeworld, a skilled veteran Predator, Wolf, receives the signal and takes it upon himself to travel to Earth to hunt and kill Xenomorphs. He arrives at the crashed Predator ship, uses a blue acid-like liquid to dissolve and erase evidence of Xenomorphs’ presence, and triggers an implosion to completely destroy the vessel.
