A group of tomb raiders, have successfully located an ancient burial pyramid hidden in the King`s Valley in Egypt. They follow the notes left by a famous archeologist, who sent missing while looking for anancient royal diamond, "The Red Giant". While excavating the entrance, the grave robbers attempt to go deeper into the tombs by destroying the doors with dynamite. But, this also causes the tunnels to collapse behind them. When they come about, they realize that they have only about an hour left, before they run out of air. The group has only one choice – to move forward unprepared for what is waiting for them inside the Pharos's tomb.