A Station Wagon became stuck on a low sand dune ridge while scouting the area. Another vehicle was used as a recovery vehicle. Heavy duty tow straps, along with shackles were secured to the tow hitches at the rear of both vehicles. During the towing process, the tow hitch of the stuck vehicle broke, resulting in sudden release of shackles with tow straps and direct impact to the rear of vehicle and roof mounted spotlight of this vehicle. No injury was sustained during the incident.