Episode 4

Keeley Donovan is in the Peak District to meet the four-legged volunteers whose noses can mean the difference between life and death for stranded walkers. Margherita Taylor travels to Kent to meet a woman who thinks she may have a solution to Britain's rural housing shortage. In order to test the health benefits claimed for outdoor swimming, Jules Hudson takes the plunge in the wintry seas off Somerset. And, as the disease threatens to sweep the country once more, smallholder Paul Martin is finding out what we can do to help combat avian flu.