Sarah and Graham transform their kitchen from bare shell into the heart of their home, Graham learns how to smoke his own home-caught fish, and the boys play their first live gig

The family create a music room, Sarah and the boys set up an incubator for their new duck eggs and Diccon helps to create some lakeside living for when they hatch.

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.

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 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 prepare for their perfect countryside Christmas. Sarah has grand plans for a treehouse inspired by an alpine chalet, and with the main house still not complete, the woodland home will also host an early festive party for family and friends. Sarah has a ready supply of honey from her bees, which she uses to make a honey-based booze, and uses the leftover beeswax to make a candle for the treehouse. To help get in the festive mood, they also visit a herd of reindeer.

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 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.

The shell of their mini mansion is built but the home is far from ready, and they are tackling the interior one room at a time. First up is the grand hallway - but first the downstairs needs a concrete floor. Away from the build, Sarah is adding a second beehive and family dog Maple has a surprise in store.