Darren and Lesley Chan have four daughters but their youngest, 9 year old Amelie, was born with CHARGE syndrome a debilitating genetic condition that has left her deaf, partially sighted and needing constant care. Darren has given up work to look after her and Lesley has retrained as a midwife to become the family's main bread winner. All of this has meant that their once loved garden has fallen into disuse and disrepair. Bearing the good news Alan turns up at St Mary's hospital to surprise Lesley at the end of a night shift. Once she's got over her shock they return to the house so that Alan can meet Darren and see the state of the garden for himself. With dilapidated decking, a partially filled in pond and uneven surfaces, the space is unfit for any member of the family. So Alan packs them all off for a few days and summons his team to begin the transformation.