Overview: Matt Baker and Margherita Taylor are at Wisley and Ockham Common on a mission to discover why heathland habitat like this needs to be prized and protected. Margherita goes in search of one of Britain’s rarest reptiles, the sand lizard, while Matt is on the hunt for one our strangest and most elusive birds, the nightjar. For Adam Henson, it is a time of new beginnings as he opens the farm park again to visitors and celebrates the arrival of a litter of rare piglets, and Tom Heap investigates whether brewers and hop growers can recover from the impact of coronavirus.