After 15 years of fostering, Stephen and Lynn Smedley were looking forward to their well-earned retirement in Carbis Bay, Cornwall. However, the dream dramatically changed when their daughter died, leaving them caring for their three grandsons. The boys, still grieving for their mum's untimely death, are forced to share a single bedroom with a triple bunkbed. There is only one bathroom and Lynn is forced to do the ironing in the shed due to lack of space. Enter Nick Knowles and the team. Their plan is to reconfigure and enlarge their home to accommodate three growing boys - with the help of hundreds of volunteers.