Love it or hate it, shooting contributes around £2 billion to the rural economy. But it's a sporting industry under the cosh, as the UK is gripped by the worst ever outbreak of avian flu. Can game bird shoots survive the 21st century? Charlotte explores the 12,500-acre Rhug Estate in north Wales to see what it means to be a traditional shooting estate in the modern world and looks at how it contributes to local business.

Sean is in Perthshire on the 1,300-acre Bamff Estate, which has eschewed shooting for eco-tourism, including a colony of beavers. Tom is in Wiltshire to investigate the threat posed by avian flu to the industry, and in the Cotswolds, Adam puts his new sheepdog Gwen through her paces. Will she pass muster?

It's 60 years since the Big Freeze, one of the coldest winters on record, when even the sea froze over, and rural communities were cut off by blizzards and towering snowdrifts. Anita Rani and Joe Crowley are in Flash, the UK's highest village, to see how the community coped then and how they brace for winter now. They also find out what sort of weather can be expected in future winters.

Anita unlocks the secrets of Flash's history, from special buttons to a booming business in counterfeit money, while Joe discovers the secrets of seaweed in the village brewery. Adam Henson reveals a new insulating product for chimney flues, and Tom Heap is on the Isle of Eigg, where islanders aren't waiting for government to help them level up but are doing it for themselves.