Iolo Williams explores the magic of the Brecon Beacons over the seasons in this stunning new series. He braves a blizzard on the high peaks, yet the lowlands can still be sunny. On the snowy slopes, foxes look for food, while a great grey shrike, a ruthless hunter from Scandinavia, looks for animals to eat. Cormorants congregate to fish on reservoirs, some birds are already breeding on the River Usk and red deer hide away in secluded gullies in one of the wildest locations in the Beacons. It's a magnificent diverse landscape with huge caves, stunning waterfalls, ancient woodland and canals.