The team is in Northampton where Charlie and the brothers go against each other to win the right to make over the garden of Theresa and Martyn. Theresa has recently retired from a career in nursing and Martyn has retired from a long teaching career. So, after being married for 42 years, and with their children moved out and providing them with grand children, they are free to enjoy their new 'forever home' - the only problem? The garden is 'boring' and 'green'.