Helen Skelton is in the Nidderdale Area of Outstanding Natural Beauty in North Yorkshire, helping prepare for the return of both animals and visitors to the hills. She joins a team keeping track of adders emerging from hibernation, to find out why numbers are falling. She also joins in with efforts to help save essential woodland and its wildlife, and discovers hidden wonders as she heads into the depths of How Stean Gorge. On his Cotswold farm, Adam Henson is struggling with the unpredictable spring weather. Tom Heap investigates how a rise in pet ownership is fuelling dog thefts and wildlife film-maker Jack Perks celebrates one of our most colourful but overlooked freshwater fish – the grayling.

Matt Baker and Ellie Harrison uncover the wonders past and present of Cranborne Chase.

Matt unravels a puzzling piece of the area's past as he explores a 900-year-old mediaeval ‘miz maze' hidden in the woods, before crossing the Chase to help tend to Britain's biggest modern day maze on the Longleat Estate. Ellie joins the UK's only ‘supercluster' of farmers working together to encourage wildlife on their land. She also heads to the River Ebble to disccover what makes this chalk stream so special and how it's helping to give rural teenagers a sense of purpose. Steve Brown is in for some special stargazing in the Chase - the UK's first designated dark sky reserve. Tom Heap investigates plans to launch a new space race from the heart of our countryside – but at what cost to the environment? And Adam Henson has a nervous wait on his hands as his rare-breed Suffolk Punch Lexi goes to the maternity unit.