Series following people who protect and work closely with wildlife and domestic animals. We travel to Cumbria, where RSPCA inspectors and the police have one of their busiest days of the year as the quiet town of Appleby welcomes over 1,500 horses to their annual fair. We join the World Owl Trust in Muncaster to see the work the conservation team are doing to preserve one of Britain's best loved birds, the barn owl. And Tom Heap visits North Wales to learn more about the conflict between wildlife protection schemes and quad bikers.