Matt Baker and Ellie Harrison explore the grounds of the beautiful Blenheim Palace estate, meeting the people who make this place tick. Matt catches up with young apprentices who are learning the tools of their trades. As well as lending a hand with lambing, Matt is also kept busy with essential maintenance. Ellie makes a beeline for the ancient woodland and finds herself swinging from one of their prized oaks in search of a rare bee. Adrian Chiles is in Dorking to meet the creator of a weird and wonderful take on the traditional horse-drawn carriage, while Adam Henson catches up with students on a new initiative to introduce young people from the city to careers in agriculture. And Tom Heap investigates claims that by 2050 the UK could run out of water.