The Barnwood Builders save barnwood from a dangerous barn in Lewistown, PA. Mark Bowe scouts an old log cabin in Missouri, an amazing barn in New Hampshire and an extraordinary home in Texas. Alex and Tim visit the longest covered bridge in Pennsylvania.

The Barnwood Builders save a West Virginia family's log home and battle mud and heat to bring it back to life as an Alabama lake house. Two years later, Mark returns to see the spectacularly finished project.