Featuring a smorgasboard of wildlife: mammals, birds, reptiles, amphibians, inverts and a botany bonanza.

Michaela Strachan heads out in search of all six of Britain's native reptile species, while Chris Packham gets into the finer detail of some of our nests on site at RSPB Arne.

Iolo Williams meets up with the series's resident botanist as they uncover some rather revealing revelations about British flora, while Gillian Burke goes in search of some of Snowdonia's brilliant bats.