Charlie Dimmock and Harry and David Rich are in Northampton, answering another Garden Rescue SOS call. This time, it’s to create a garden that allows two children with limited mobility access to the outdoors. Although Jamie, aged eight, is in a wheelchair and Phoebe, aged four, has to use a walker, their parents Andy and Louise are determined that their children should be able to be independently active in their garden - especially, as both Jamie and Phoebe love sports like basketball and archery. But the garden has lumpy grass that the kids' mobility aids don’t work on and a tiny patio that is too small for the children to navigate, let alone put decent garden furniture on. It's the team’s job to create a working solution to this family's needs, and to make their task harder little Phoebe has a very specific demand - the finished garden must include unicorns!