from their base in the heart of New Hampshire, Chris Packham, Michaela Strachan and Gillian Burke bring us the latest happenings from deep in the American woods. We learn about the science of how this spectacular leaf change comes about, and meet some of the smaller residents who change colour along with the leaves.

Michaela has been on a moose mission, finding out about a tiny but deadly enemy of these massive beasts, and Gillian is looking for red efts in the leaf litter – a brightly coloured newt that comes out in damp conditions.