Sarah and Debbie make difficult decisions in the race to finish Riverrock.

Sarah overcomes missteps as a first-time general contractor. With no second chance possible, their red concrete floor needs to turn out perfectly.

Sarah and Debbie are ready to build a home from plans that were on Frank Lloyd Wright's drawing table when he died. But the town must approve, first.

With challenges mounting up and no general contractor on board, Sarah and Debbie make a critical decision about who will lead the build of Riverrock.