If Indiana Jones lived in the X-Files era, he might bear at least a passing resemblance to Nolan Moore -- a rogue archaeologist hosting a web series derisively dismissed by the 'real' experts, but beloved of conspiracy theorists. Nolan sets out to retrace the steps of an explorer from 1909 who claimed to have discovered a mysterious cavern high up in the ancient rock of the Grand Canyon. And, for once, he may have actually found what he seeks. Then the trip takes a nasty turn, and the cave begins turning against them in mysterious ways.