Movie-Film Production Information Summary:

The film begins immediately following the events of Alien vs. Predator, onboard the Predator spaceship leaving Earth which is carrying dead Aliens, living facehuggers, and the body of the dead Predator who had defeated the Alien queen. A chestburster erupts from the dead Predator's body; it is a deadly Alien/Predator hybrid called a Predalien. It quickly grows into an adult and begins killing the Predators onboard the ship. One Predator fires at it, creating a hole in the hull and causing the ship to crash in the forest outside of Gunnison, Colorado. With the Predators dead, the Predalien and several facehuggers escape into the forest and implant embryos into a father and son on a hunting trip as well as several homeless people living in the sewers.