Sarah and Graham want an impressive staircase for their new home, similar to the one they had at Rise Hall, their old country house in East Yorkshire. The couple track down a local tradesman who is able to achieve the `aged wood" look they are after - but Sarah and Graham have differing ideas on the look of this important feature. Meanwhile, Sarah is keen on keeping goats, so the family head off to Devon to find out how much work it might take and what the benefits could be

Spring arrives and after months of lockdown, the boys are all heading back to school, meaning Graham can get stuck in to project managing the house build. He and Sarah are planning a large dining room for entertaining, with a centrepiece table that used to belong to rock star Ronnie Wood. Artist Graham also draws on his skills to apply some decorative touches to the room - but will it be theatrical enough for Sarah? Meanwhile, the couple also visit a pig farmer who shows them the cycle from piglet to pork chop

Sarah and Graham turn their attention to the transformation of their sitting room. They have some elegant features planned, and for inspiration they visit Ford Abbey, a gothic grade 1 listed monastery, to soak up what grandeur looks like on a huge scale. But as well as building their dream house, they have 220 acres of farmland to think about and having tickled their tastebuds with cider last year, Graham buys four apple trees. It may not be an orchard, but it's a start

The action moves upstairs as the transformation of the boys' bedrooms begins. All four of them are keen to take charge of their own room designs and also to get their hands dirty making it happen. They have grand plans, but can they pull them off? On the land, Graham and Sarah decide to install a zipwire across their large pond, and when Charlie and Laurie harvest a load of nettles, Sarah brews up a batch of nettle beer - but not everyone is convinced.

The family tackle five en-suite bathrooms, one for Graham and Sarah, and one each for the boys. They begin by installing under-floor hearing then take delivery of 178 different items required to kit out these separate rooms. When it comes to the tiling, Charlie and Raffey decide they want to do it themselves, so Sarah shows them her grouting skills. Things gets more tricky, however, when they try to shift a 400lb cast iron bathtub upstairs. Away from the build, the family learn about weaving rush seats and haymaking.

Sarah Beeny and her family set their sights on creating a music room where the boys can practise their instruments. The boys are keen to come up with the ideas for this part of the house, so they take charge of the design. Billy, Charlie, Raffey and Laurie have formed a band, and Graham sometimes helps out because he too was in a band when he was younger.

Sarah and Graham set about transforming the kitchen from bare shell to the heart of their family home. But from the outset, they have differing views - will they be able to come up with something they'll both enjoy spending time in? Away from the build, keen angler Graham learns how to smoke his home-caught fish, he and Sarah invite a group of metal detectorists to the farm to check out the variety of treasures they have unearthed, and the family band rehearse for their first gig at the local pub.