Katie and Christian and their kids Max and Olivia live in Bitterne, near Southampton. They are suffering from a classic case of ‘building work ruined the garden’. In fact, mum Katie calls it a 'catastrophe' of a garden. Can Charlie and the Rich brothers save the day, despite having a budget of only £2,500? The garden also has to work as a space for both day and night. Christian works shifts, so he would like to use it late into the evening.