A celebration of a true conservation hero. Roy Dennis has dedicated his life to bringing species back from the brink, this episode shines a light on his positive and groundbreaking work. Chris Packham and Michaela Strachan are joined by Iolo Williams at RSPB Arne in Dorset, where they round up the week's drama on the live remote cameras and answer viewers' wildlife-themed questions, while up in Scotland, Megan McCubbin gets to know the industrious beavers that call the Argarty Rewildling Estate home.