Watch The Devil Below (2021) HD Full Movie Free on SolarMovie. Watch The Devil Below (2021) online free. A group of four amateur adventurers who specialize in exploring remote and forsaken places pay a vis...A group of four amateur adventurers who specialize in exploring remote and forsaken places pay a visit to Shookum Hills, a town in the remote Appalachian Mountains, which was abandoned decades ago due to a mysterious coal mine fire.