When a private satellite encounters an unidentified source of heat in Antarctica and it is found to be a pyramid buried deep underground, a search team comprising of top-of-the-line archaeologists and engineers is sent to Antarctica to find out more. Once there, the team comes across signs which indicate that the place is inhabited by an unknown alien species.

It is not long before the aliens begin to hunt the team members. At the same time, a trio of coming-of-age Predators has arrived to collect the skulls of the aliens as trophies, and the humans are caught between a deadly battle between the two warring species.