Thomas and Rhiann are school sweethearts who have married, bought their first home together in Bournemouth and now have a baby on the way. In fact, all that’s missing is the perfect garden! Charlie and the Rich brothers are on hand to help the couple with that. They have a budget of £3,000 to create a shady, flower-filled space in their sunny back garden. But there's the small matter of whether Tom will be allowed his lifelong dream of putting in a massive koi carp pond.