The Cave

In the 13th-century Carpathian Mountains of Romania, an Eastern Orthodox abbey and its inhabitants are destroyed by a landslide. Centuries later, a group of modern-day Soviet and British plunderers search for the long-lost abbey during the Cold War era. They discover the abbey is built above a vast cave system, but it is completely blocked off by an intricate floor mosaic. Trying to blast their way in, they cause a landslide that buries the abbey, trapping the men in the cavern below. They descend further into the cave in hopes of finding a way out, even as they hear strange sounds in the darkness.