Mark and the guys return to Texas to build a gigantic party barn out of an old timber frame. They use old-fashioned tools to retrofit the barn for modern use, and they install a rare swing beam in the center bent.

Mark finds a perfectly preserved bank barn in Pennsylvania; the beams are so nice, he considers keeping this barn for himself; he also visits a bank barn that has been transformed into a high-end home with barn-wood flooring and soapstone counters.