The team explore the magnificent South Downs. Matt Baker meets the pony who's blazing a trail across this landscape. Helen Skelton discovers why dark skies are so important for our wildlife. John Craven visits Charleston House, the rural retreat of the Bloomsbury Group. And Adam Henson looks at a new and novel way to stop cattle from roaming.

A courgette crisis, a lack of lettuce and rationing on our supermarket shelves, just what is going on behind the scenes of Britain's veg crisis? Tom Heap heads to Spain to find out what's gone wrong and to discover what we can do keep our food supply secure.

Matt Baker and Anita Rani are on the Hoo Peninsula. Matt hears how it's a landscape that's been shaped over the years by 'saltshepherds' and 'muddies', whilst Anita sees how fleece and feather work together to protect the huge numbers of birds that flock to the area. And there's a sense of spring in the air with lots of new arrivals down on Adam's Farm. Tom Heap looks at what leaving the EU could mean for the UK's agricultural migrant labour force and the farms that employ them.