There are some surprises at a purpose-built Catholic-holiday-village-turned-B&B, as one couple explore a network of underground tunnels. In Italy, two abandoned villages get connected, as work to a spectacular suspended bridge nears completion. A couple in France continue renovations at their 250-year-old village, though paperwork threatens to get in the way of their summer deadline. Plus, one man ploughs on singlehandedly in his 15-year project to bring his Spanish village back from the brink.