Plot: The show opens with a visit to the top of Great Blue Hill and its historic weather observatory (built in 1885) to view the sights: the town of Milton, downtown Boston (8 miles northeast), and the 7,000 acres of parkland that comprise the Blue Hills Reservation. At the jobsite, the crew takes up planks in the front part of the barn in preparation for turning it into a garage; the structure reveals various areas of rot and poor construction