In the Dordogne, Nick gets demolition-happy in a bid to finish opening up the entrance hall of their derelict château, but Nicole is worried he'll come down with the ceiling. It's a big day for Becky and Mark as the new floor in the gîte is laid. Mark has to manage thousands of gallons of fast-flowing concrete. Wendy has grand plans to build an elegant wedding garden for couples to wed in, but Marcus has to figure out the measurements of the second-hand pergola she's bought, which has lain in rusty pieces for the last three years.