Contestants trudge down a darkened passageway, as the way back has been cut off and help won't arrive for 30 days, individual craftiness is required to claim millions in prize money. Only by pressing the red button on a mobile-like communicator clipped to the belt can the title contest be called off. The game is afoot when blindfolded contestants find themselves sealed in a grimy concrete bunker. Problem is, the rules, posted to the wall like the fire-drill plans in a hotel room, are both unclear and contradictory and nobody seems to be able to detect an actual camera. Soon, this high-stakes reality show goes awry.