 In a future society apparently ruled by virtual games, Conrad (Alex Dimitriades), the leader of a revolutionary group called "The Orphans", escapes from the guards when he was going to be executed, and with the support of his girlfriend Gracie (Tasma Walton), he goes to the last level of a parking garage trying to escape to a sanctuary. However, the garage is shutdown by a crazy teenager that has developed a new version of a deadly game called Subterano, and Conrad and Gracie, with four teenagers, a security guard and an elder accountant have to play the game and fight to survive.