Chris Packham, Michaela Strachan, Gillian Burke and Iolo Williams broadcast live from the Dell of Abernathy in the Cairngorms. Tim Peake explains how autumn was born four and a half billion years ago.
Chris Packham, Michaela Strachan, Gillian Burke and Iolo Williams are live from the Cairngorms National Park. Michaela embarks on a wild goose chase, and the camera team attempt to find a deer rut.
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.
The team end their week-long adventure in the Cairngorms looking at the autumns of the future and discovering encouraging news about Scottish wildcats.
