Double-bill of creepy alien action as the two interstellar opponents square up on little old planet Earth. In 'Alien vs Predator' (2004), a team of archaeologists are sent to Antarctica when an unidentified heat source turns out to be a pyramid-like temple buried deep under the ice. Discovering an alien life-form present in the temple, events take a turn for the worse when a group of adolescent predators arrive, intent on collecting the skulls of the aliens, and any passing humans, as trophies. In 'Aliens vs Predator - Requiem' (2007), returning to their home planet with several alien captives and a dead comrade on board, two predator pilots are killed when an alien hybrid, unknowingly concealed in the body of their dead buddy, bursts forth.