Countryfile is exploring Wembury, near Plymouth. It has some of the best rock pools in the country, as Joe Crowley’s discovering at the annual nature survey happening here, known as a bioblitz. Anita Rani unearths Wembury’s naval history – until not so long ago it was the sound of gunfire you could hear overhead, not seabirds. Ellie Harrison dips beneath the waves on the hunt for the watery wildlife that calls this place home. Adam Henson is moving some of his sheep and they’ve gone all up-market – Downton Abbey no less. And Tom Heap is on the trail of the ram-raiding gangs ripping out the cashpoints which our villages rely on.