Charlie helps Richard Southgate and his wife Kate as they build a five-bedroom family home in the beautiful, Shropshire countryside. Richard runs a car dealership and the family has been crammed into the flat above the showroom for two years. They found their dream plot but that was six years ago, and since then they've really lost their way. If all goes well, they could have a £1,000,000 house for under £600,000. But Richard's dream of a basement bat-cave means the couple will need to dig deep in more ways than one.