Matt Baker and Julia Bradbury head for the borderlands and beyond.
Matt and Julia's journey begins in the far south west of England.
Julia Bradbury walks in the Scottish Highlands and tells the story of Thomas Telford.
Julia Bradbury crosses Cornwall, following a railway that has not operated for 140 years.
Julia Bradbury takes a walk along the stunning Mawddach estuary in north Wales.
Julia Bradbury begins her adventure in appalling weather just outside the Lake District.
Adam Henson looks back through the Countryfile archives to explore the farming seasons.
Ellie Harrison explores some of Britain's finest country estates.
Grainne Seoige examines the cost of heating and Stanley Johnson looks for stand-in Santas.
Ade Edmondson follows the journey of a letter across the UK.
Grainne Seoige tackles overcrowded trains and Ade Edmondson unplugs the National Grid.
Grainne Seoige tackles junk mail, and Ade Edmondson follows luggage through an airport.
Matt Baker and Ellie Harrison enjoy the contrasting landscapes of the Derwent Valley.
Ellie Harrison presents a special remembrance edition of Countryfile.
John Craven heads to the Cairngorms to look at some of the team's most memorable trips.
Stars including John Craven and Julia Bradbury take part in a special edition of the quiz.
Matt and Julia are in Gloucestershire on the hunt for one of Britain's rarest butterflies.
Julia presents series highlights and discovers which animal part is used to produce books.
How fish end up inside everything from hairspray and beer to perfume and guitars.
Matt Baker and Julia Bradbury head to the vast chalk grasslands of Salisbury Plain.
How the inedible parts of a pig can be turned into everything from shoes to hairbrushes.
Matt and Julia explore the countryside where the North Downs create the Surrey Hills.
How the inedible parts of a sheep can be turned into everything from cosmetics to condoms.
Julia visits Telford's mighty aqueduct that stretches across the Vale of Llangollen.
Julia tells how the Kennet & Avon was restored after being given a lottery heritage grant.
Julia Bradbury heads out on foot in one of the world's most famous game reserves.
The 3,000m Cathedral Peak is the ambition for Julia Bradbury and her Zulu guide Zee.