Kevin McCloud meets Zimbabwean-born Davi and Matt from Australia, who are determined to create a home to reflect their backgrounds, so set out to build a house in the Chess Valley with a radical multicultural design, which is especially daring for their commuter-belt suburb. Despite their inexperience and the technical difficulty of the steeply sloping site, Davi and Matt manage the venture themselves. But it's not long before the problems begin.