Summary: Nick Knowles and the team are in the Gloucestershire village of Chorlton Kings, where former car mechanic Peter needs help building an extension to the family house for his wife Sarah and daughter Suzanne, who both have a long-term genetic disorder that affects muscle function. Peter also looks after his elder brother Steve. Peter started the work to adapt to everyone's growing needs but the pressure of looking after the family and completing the work has proved too much, and now his own health has taken a turn for the worse.