Jon and Carmen start work on their deluxe vineyard pergola, but Jon's measurements go awry. And can Sarah and George transform a poo-covered pigeonnier into a wedding focal point?

Donna and Paul race to waterproof their basement of their once-derelict five-floor home as river levels rise in Brittany. Eleanor and Ben explore different châteaux near the Pyrenees that they hope will lead them to a forever family home. Vivienne and Simon plan a lavish costume party themed around their new Empire Suite.