This week, it's early autumn and as wet weather wreaks havoc in the Dales, Reuben and Sarah help their community in a crisis. Friend and stone mason Pete Roe asks the pair to lend a hand repairing a 200-year-old drain, known as a culvert, which has collapsed under the force of rain fall. Without the repair the access road will flood. Pete teaches them how to hand-split rocks using the traditional "plug and feather" method.