 The satellite of a company owned by the millionaire Charles Bishop Weyland (Lance Henriksen) locates in Antarctica an unidentified source of heat and a pyramid with indication of three different primitive cultures built six hundred meters below a deactivated whaling station. Weyland hires expertize, including an archeologist and an electronic engineer, and organizes an expedition leaded by Alexa Woods (Sannaa Lathan). When they reach their target, they realize that the place is indeed the stage of an ancient war between two breeds, and humans are only kettle in this game. They pick a side, based on the saying that the enemy of my enemy is my friend.