In this episode, Dougie is at the Tweed Valley Forest Park in the Borders. He takes a walk through the woodland on the Yair Estate and finds out how it is being future-proofed for climate change and extreme weather events.Arlene is near Dumfries to visit the dairy cattle that are being studied to assess how happy they are. Meanwhile, Cammy is in Ayrshire, where he meets a couple with a passion for poultry. He finds out how they have developed their own environmentally friendly, organic chicken feed.Elsewhere, Anne is on the banks of the River Tay, where she works her way through the biggest reed beds in the country and hears of their benefits to nature.