Ellie Harrison and Matt Baker are in Cambridgeshire, where Matt looks at a huge project to turn a quarry into the UK's biggest reed bed.

Steve Brown goes on a tour of the Isle of Sheppey. A flat landscape typified by saltmarsh, sea and big skies, this is a wilderness full of wildlife.

Steve Brown explores one of his favourite local haunts, Elmley Nature Reserve on the Isle of Sheppey, where swallows and swifts are gathering in their hordes, heralding the arrival of summer. Margherita Taylor is on the hunt for an invasive species of moth which threatens not just the oaks on Hampstead Heath in London but walkers too. On the farm, Adam’s horses are getting a hoof health check, and he catches up with top trainer Jonjo O’Neill to see how his racehorses are coping with life off the track. And wildlife film-maker Richard Taylor Jones hangs out with a busy vixen and her litter of playful cubs.

Matt Baker and Charlotte Smith head to Christmas Common in Oxfordshire, home to one of the biggest Christmas tree farms in the country, to celebrate the festive season. Matt finds out why a dairy-farming family swapped cows for Christmas trees and how seasonal farming is a year-round business.

Charlotte channels her inner elf, heading to the local market town of Watlington to help a butcher, a baker and a candlestick maker prepare their festive treats.

The cattle are lowing as Adam Henson visits a Christmas cattle market in Rutland and also launches a cracker of a competition to design a bobble hat for Children in Need. Tom Heap gets gift wrapping with the countryside communities preparing a rural welcome for refugees. John Craven gets a Christmas present to remember as he meets the descendants of red kites he helped release nearly three decades ago, and wildlife cameraman Richard Taylor Jones goes on a white Christmas wildlife walk.