Geologist Robert Schoch, known for his work redating the Egyptian Sphinx through weathering patterns, turns his attention to a rock formation deep in Romania's Carpathian Mountains that some researchers claim is another sphinx, carved by a civilization lost to history. The film follows years of onsite fieldwork at the site, with Schoch and local researchers examining erosion patterns, rock composition, and the surrounding terrain to test whether the formation is natural, man-made, or something altered by human hands long after nature shaped it. Interviews and location footage build the case piece by piece, weighing the sphinx comparison against the geological evidence on the ground. The program uses the Carpathian find to reopen the broader argument Schoch is known for: that some monuments long assumed to be recent may be far older than mainstream chronology allows, and that Egypt's Sphinx might not be the only such puzzle standing in plain sight.