Episode 4

At the end of a dramatic first week in Gloucestershire, Michaela Strachan, Chris Packham and Gillian Burke report live on all the latest action from the National Trust's Sherborne Estate. Meanwhile, Martin Hughes-Games is on a mission to report live from some of the more far-flung areas of the British Isles. He is in north Wales today, meeting up with Iolo Williams to track down the elusive sand lizard.