About Autumnwatch Season 2019, Episode 3 : Episode 3

Chris Packham, Michaela Strachan, Gillian Burke and Iolo Williams return with another hour-long live programme, live from the Cairngorms National Park. It is Halloween so time to reveal the wild secrets of Troll Mountain on the Island of Rum. Chris reveals the surprising science inside an antler and the team go hunting for Britain’s biggest spider.