The ruins of a historic Scottish castle is now a bewitching wilderness of hidden dangers with deadly booby traps obscured afoot; experts and historians reveal a bygone Second World War military hospital with bizarre ties to an infamous Nazi occupant. Stories: 1) Buchanan Castle, Drymen, Scotland; 2) Mineral Beach Resort, Occupied West Bank; 3) Williamson's Tunnels, Liverpool, England; 4) Wyoming State Penitentiary, Rawlins, Wyoming